Abrasion Wound Care: How to Clean It, Whether to Cover It, How Long It Takes to Heal, and the Infection Signs You Should Not Wait On

3 days ago

18 min read

An abrasion (also called an excoriation) is a wound caused by skin being scraped or

rubbed against a rough surface, so that the top layer of the epidermis comes off and the injury may reach the upper dermis. The wound looks pink-red and weeps clear fluid. It stings a lot but bleeds little, because the torn vessels are tiny capillaries.

Abrasions are the most common everyday wound, and also the one that is most often “cared for wrongly”. Three habits are common in Thailand: pouring alcohol into the wound, letting it dry out and form a scab, and picking the scab off when it itches. All three slow healing and leave marks for longer. This article explains the correct method, which products to use, at what strength and for how long, and when to stop self-care and see a doctor.

What an abrasion is, and how deep a wound can be and still count as one

Skin has three main layers: the epidermis (0.05–1.5 mm thick), the dermis (1–4 mm thick), and the fat layer beneath the skin. By definition, an abrasion is damage confined to the first two layers.

A true abrasion has three features in common: the edges are uneven because the wound comes from scraping, not cutting · the wound bed is wide but shallow · and the bleeding is a general ooze across the wound bed, not blood spurting from one point.

If the wound is deep enough to show yellow fat or glistening white tendon, or the edges have split apart to form a groove, it is no longer an abrasion. It is a laceration, which usually needs stitches within the first 6–8 hours so the edges meet and the chance of infection is lower.

How an abrasion differs from other wounds

Telling wound types apart correctly from the start matters, because each type needs different care and has a different level of urgency.

Abrasion — skin scraped away, wide shallow wound bed, oozing blood. Can be washed and dressed at home.
Laceration — skin torn into a groove with separated edges. Usually needs stitches.
Incision — clean sharp edges from a sharp object, with more bleeding. Check whether a tendon or nerve has been cut.
Puncture wound — a small hole that goes deep, such as from a nail or a wood splinter. It carries the highest risk of tetanus and deep tissue infection. Never judge it by the size of the hole you can see.
Burn — from heat, chemicals or sun. Assess by depth and area, not by how painful it is.

Wounds from a motorcycle or bicycle fall are often several types at once: a wide surface abrasion, bruising under the skin, and possibly puncture wounds from debris buried deep. Assess each spot separately rather than treating them all alike.

Superficial abrasion, epidermis only

Appearance — a red band of skin with no bleeding or only tiny pinpoints, and a thin sheet of skin peeled away. It stings on touch but does not hurt deep down.
Causes — friction from clothing, shoes that rub, a fall on a smooth floor, hard scratching, or adhesive tape pulling at the skin.
Severity and urgency — low. It can be cared for at home, heals in 3–7 days and leaves no scar, because the stem cells in the dermis are still intact.
When to see a doctor — if redness spreads more than 2 cm beyond the edge after 48 hours, or if it keeps recurring in the same place, which can be a sign of a skin condition that makes the skin fragile.

Abrasion that reaches the dermis

Appearance — a pink to bright red wound bed with bleeding points scattered across it, weeping fluid throughout the first day, and strong stinging pain because nerve endings in the dermis are exposed.
Causes — a fall on concrete or asphalt, scraping against a sports surface, or being scraped by a rough object.
Severity and urgency — moderate. It needs thorough cleaning and a moist dressing, takes 10–14 days, and can leave dark marks or a scar if not cared for well.
When to see a doctor — if the wound is wider than the injured person’s own palm, is on the face or a joint, has dirt embedded that will not wash out, or hurts more rather than less after 48 hours.

Road-fall abrasion with grit or stones embedded

Appearance — black or grey specks scattered across the wound bed that do not wash out with water, and some spots that are clearly more tender deep down than others.
Causes — skin sliding along the road at speed, which presses gravel, sand, tar and flakes of paint into the dermis.
Severity and urgency — higher than the wound looks. Retained foreign material becomes both a source of infection and a permanent tattoo (traumatic tattoo) that is very hard to remove once the skin has healed over it. It must be removed within the first 24–48 hours.
When to see a doctor — immediately if there are embedded specks that will not wash out, because removal needs scrubbing the wound with a brush and saline together with local anaesthetic injection, which cannot be done at home.

Abrasion in people with diabetes or poor circulation

Appearance — a shallow wound that does not shrink, with pale or dusky edges. It often hurts less than it should because the nerve endings have been damaged.
Causes — shoes that rub, walking barefoot, or a toenail cut too close, in people with long-standing high blood sugar or narrowed peripheral arteries.
Severity and urgency — the highest of all abrasions. A 1 cm wound on the foot of a person with diabetes is not equal to the same wound on anyone else’s foot, and it can be the start of a chronic wound that leads to toe or foot amputation.
When to see a doctor — within 24–48 hours even if the wound looks small, and do not wait and watch. Read more in the article Chronic wounds: when a wound will not heal

Abrasion in children

Appearance — usually on the knees, elbows, palms and chin. The wound is shallow, but children resist cleaning strongly, so the first wash is often not clean enough.
Causes — falling while running, falling from play equipment, or sliding on the ground.
Severity and urgency — low to moderate. However, children’s skin is more easily reinfected by bacteria than adults’, and infection often shows up as the honey-coloured crusts of impetigo, which can spread to other children.
When to see a doctor — if new golden honey-coloured crusts appear, the child has a fever or is drowsy, will not use that arm or leg, or the wound came from an animal bite or scratch.

The correct steps for cleaning an abrasion

All of this should be finished within the first 1–2 hours after the injury, while the bacteria have not yet multiplied beyond what the local immune

defences can handle.

Wash your hands with soap and water for at least 20 seconds before touching the wound, or put on clean gloves if you have them.
Stop the bleeding first. If it is still oozing, press a clean gauze firmly on the wound for 5–10 minutes without lifting it to look.
Rinse with clean water or 0.9% normal saline in large amounts, letting it flow across the wound. The recommended amount is about 50–100 ml per centimetre of wound length. Pressure from squeezing a bottle or using a syringe flushes out dirt better than wiping.
Wash around the wound with mild soap. The skin around the wound can be washed with soap, but do not rub soap directly onto the wound bed.
Remove foreign material. For specks that will not rinse off, lift them out one at a time with clean tweezers. If they are deeply embedded or numerous, stop and see a doctor. Do not dig.
Pat the area around the wound dry with clean gauze, dabbing gently without rubbing, and only then apply ointment and a dressing.

Saline, alcohol, hydrogen peroxide or povidone-iodine: which one to use

This is where misunderstanding does the most harm. The liquid that stings the most is not the best one. The sting reflects the liquid destroying the new skin cells that are about to repair the wound, just as much as it destroys bacteria.

0.9% normal saline (0.9% NSS) — the first choice for washing the wound bed. It does not damage cells and does not sting, and it can be used every day throughout treatment. Clean running tap water is acceptable in an emergency; studies have found no difference in acute wounds.
70% alcohol — use only to wipe normal skin around the wound or to disinfect instruments. Never pour it onto the wound bed, because it precipitates the proteins in skin cells and kills the tissue that is regrowing.
3% hydrogen peroxide — the foaming you see is not proof that it disinfects well; it is a reaction with enzymes in the tissue. It damages the skin-building cells (fibroblasts) and is no longer recommended for repeated wound washing.
10% povidone-iodine — can be used the first time to reduce the number of germs in a dirty wound, but should not be poured onto the wound bed every day. Apply a thin layer to the skin around the wound instead. Do not use it in people who are allergic to iodine or who have uncontrolled thyroid disease, and do not use it over a large area in infants.
0.05% chlorhexidine gluconate — an alternative for washing a dirty wound, but do not use it near the eyes or ears.

A simple rule that applies in every case: what makes a wound clean is the amount of water and the pressure, not the strength of the liquid.

Should you cover an abrasion, or let it dry and scab over

The medical answer has been clear since the 1960s: keeping the wound covered and moist is better than letting it dry. This principle is called moist wound healing and is the standard of wound care in hospitals worldwide.

In a wound left to dry, new skin cells must crawl beneath a hard scab, which is a physical barrier. In a wound kept moist, cells move across and close the wound significantly faster. The result is healing that is about 30–50% faster, less pain and less scarring.

What needs to be understood clearly: “moist” does not mean soggy. If the skin around the wound turns white and mushy, the dressing is not absorbing enough fluid. Change the type of dressing; do not go back to leaving the wound uncovered.

A scab is not a protective shield. It is blood and fluid that has dried and hardened. Picking a scab tears off the new skin cells beneath it, sends the wound back to the start and raises the chance of scarring. If it itches a lot, apply a cold compress around the wound or ask a pharmacist about an oral antihistamine.

Choosing a dressing that matches the wound

Gauze soaked in saline or coated with petroleum jelly — cheap and easy to find, but it must be changed once or twice a day and may stick to the wound if it dries out.
Transparent waterproof film — suits superficial abrasions with little fluid. You can see the wound without opening it, and you can shower with it on.
Foam dressing — absorbs a lot of fluid. Suits deep or wide abrasions during the first 2–3 days when they weep heavily.
Hydrocolloid — keeps the wound very moist and can stay on for 3–5 days without changing. Suits wounds with little to moderate fluid, but do not use it on a wound you suspect is already infected.
Non-adherent dressing — placed over the wound bed before covering with gauze, to reduce pain at dressing changes.

How often to change should follow the amount of fluid, not the clock. The practical rule is to change when fluid reaches the edge of the dressing, or at least as often as the label for that dressing says.

Creams and ointments for abrasions: which one, and for how long

In an abrasion that has been washed clean and shows no sign of infection, a topical antibiotic is not always necessary. Comparative studies have found that plain petroleum jelly heals as well as topical antibiotics, without the risk of contact allergy or antibiotic resistance.

If you do choose a topical product, the main options are as follows.

Pure petroleum jelly (white petrolatum) — apply a thin layer over the wound bed at every dressing change. Its job is to keep the wound moist and stop it sticking to the gauze. It can be used until the wound has closed.
2% mupirocin — a topical antibiotic that covers Staphylococcus aureus and Streptococcus well. Apply 3 times a day for 5–7 days. Used when the wound is dirty, for children’s wounds at risk of impetigo, or when yellow crusts begin to appear.
2% fusidic acid — apply 2–3 times a day for no more than 7 days. Note that repeated, prolonged use can lead to resistant bacteria.
1% silver sulfadiazine — used for wide abrasions that resemble burns, under a doctor’s instruction. Do not use in people who are allergic to sulfa drugs or in infants under 2 months of age.
Neomycin and bacitracin — found in many wound ointment formulas, but a common cause of contact allergy rash. If the wound becomes redder and itchier after applying it, suspect an allergy to the ointment rather than infection.

What shows whether it is working — within 48–72 hours the wound should weep less, the red edge should not widen, and pain should ease. If after 3 days the wound is redder than before, hurts more or has pus, the current approach is not working and you need a doctor to reassess it. Do not switch ointments on your own.

Choosing the medicine, its strength and its duration for each person is a decision for the doctor after examining the actual wound. The information above is to help you understand the approach, not to replace an examination.

Do you need antibiotics by mouth for an abrasion

Most abrasions do not need oral antibiotics. Taking antibiotics “just in case” for a clean wound does not reduce infection, but it raises the chance of resistant bacteria, drug rashes and diarrhoea.

Situations in which a doctor will often consider oral medicine include: a wound that is clearly infected, wounds from animal or human bites, wounds contaminated with soil or dirty water, wounds in people with diabetes, people with weakened immunity, or people who have had the spleen removed.

Medicines commonly used in practice are cloxacillin 500 mg four times a day for 7 days, or cephalexin 500 mg four times a day. For people allergic to penicillin, clindamycin 300 mg four times a day is often used. For animal bites or heavily contaminated wounds, amoxicillin-clavulanate 625 mg three times a day is often used, because it also covers bacteria in animals’ mouths.

What shows that it is working is that the fever settles and the red edge shrinks within 48–72 hours. If there is no improvement within this time, go back to the doctor to assess for pus that needs draining, resistant bacteria, or infection spreading deeper as cellulitis. Choosing and prescribing antibiotics is the doctor’s job. Do not buy them to take on your own or take leftovers from a previous course.

Tetanus vaccine: when is it needed

Tetanus is caused by a toxin from Clostridium tetani bacteria, which live in soil, dust and animal waste. It is almost completely preventable with vaccination, but once it develops the death rate is high. It is a decision to make on the first day of the wound, not something to wait and watch.

Small clean wound — if you have had a full course of 3 or more doses and the last dose was within 10 years, no extra dose is needed.
Dirty wound, soil-contaminated wound, puncture wound, animal bite — if the last dose was more than 5 years ago, one booster dose is advised.
People who have not had 3 doses, or cannot remember — need to start the vaccine series again, and with a dirty wound may also need tetanus immunoglobulin (TIG).
Adults in general — a booster every 10 years is recommended anyway, even without a wound.

A common mistake is to judge the risk by the size of the wound. A nail puncture with a hole smaller than a grain of rice carries a higher tetanus risk than a wide abrasion on a clean floor at home, because this bacterium grows well where there is no oxygen.

How many days does an abrasion take to heal, and what slows it down

Approximate times in healthy people

Superficial abrasion, epidermis only — skin closes within 3–7 days, no scar.
Abrasion into the upper dermis — skin closes within 10–14 days, and redness or dark marks may follow.
Wide abrasion from a road fall — 2–3 weeks, with a chance of permanent marks if embedded debris is left in.
Red and dark marks after healing (PIH) — fade by themselves within 3–6 months, and take longer in darker skin.
Scar remodelling — can continue for 12–18 months after the wound has closed.

Factors that slow healing significantly include: poorly controlled diabetes · smoking, which reduces blood flow to the wound · a lack of protein, zinc and vitamin C · steroid and immunosuppressant medicines · abnormal veins or arteries in the limbs · a wound over a joint that is always moving · and repeatedly exposing the wound to dry and wet cycles.

Signs of infection that mean you must come back to a doctor

Mild pain, swelling and redness in the first 24–48 hours is the normal inflammation of repair. What is abnormal is symptoms that get worse after that period has passed.

Redness spreading more than 2 cm from the edge of the wound, or a red line running up the arm or leg
Pain that keeps increasing after 48 hours instead of gradually easing
Thick yellow-green pus, or an unusually foul smell
Wound swelling so tight that the skin looks shiny, or a soft lump you can feel under the skin
A fever above 38 degrees Celsius, chills, or unusual tiredness
Numbness, or being unable to move that part as before
New golden honey-coloured crusts, especially in children

Groups who should lower the threshold and see a doctor sooner than other people are people with diabetes, people taking immunosuppressants or chemotherapy, older adults, people with peripheral vascular disease, and people who have had the spleen removed.

Preventing scars and dark marks

Scar management starts on the first day of the wound, not after it has healed.

Keep the wound moist and do not let it become infected — these two things affect scarring more than any cream used later.
Do not pick the scab — each time you pick it, the repair process goes back to the start.
Be strict about sun protection — newly closed skin darkens very easily. Apply SPF 30 or higher sunscreen to the fully closed wound every day for at least 3 months, or cover it with clothing.
Silicone sheets or silicone gel — start once the wound has fully closed and has no scab. Use for 12–24 hours a day, continuously for 2–3 months. This is the method with the most evidence for reducing raised scars. For details, read Scar treatments: which to choose and for how long
Watch for a scar that starts to rise past its edges — if after 4–8 weeks the scar becomes raised, firm, red and itchy, see a doctor early, because keloids and hypertrophic scars respond much better when managed in the early stage.

Common myths about abrasions that persist

“Let it dry out and it will heal faster” — the opposite is true. A dry wound heals more slowly and leaves more marks.
“It has to sting to be clean” — stinging reflects tissue damage, not cleanliness.
“Toothpaste or herbal poultices help the wound dry” — they add irritation and infection, and make it harder for the doctor to assess the wound.
“Don’t eat eggs or the wound will become raised” — there is no medical evidence for this. On the contrary, good-quality protein such as eggs is the raw material the body uses directly to build collagen and repair wounds. It is people who do not get enough protein whose wounds heal slowly.
“Avoid fermented and pickled foods and seafood” — the real restriction applies only to people who are already allergic to that food.
“A scab is a natural shield, don’t touch it” — a scab does not protect against germs and is not needed for the wound to heal.
“A small wound means you don’t need to think about tetanus” — wound size is not related to risk. What matters is the kind of contamination.

When you can shower, exercise and swim

Showering — possible from day one, using a waterproof dressing or by removing the dressing and letting clean water run over briefly. Do not soak, do not rub soap onto the wound bed. Afterwards pat dry and re-cover immediately.
Bathtub, onsen or swimming pool — wait until the wound has fully closed and no longer weeps, generally about 7–14 days, because still water and shared water contain bacteria that can infect an open wound.
Sea and natural bodies of water — also wait until the wound has fully closed, especially for people with liver disease or weakened immunity, who are at risk of severe infection from seawater.
Exercise — light exercise can be done at once. But if the wound is over a joint that constantly bends and straightens, such as the knee or elbow, resting that movement for the first 3–5 days lets the skin close faster and lowers the chance of the wound splitting open again.
Sweat — does not directly infect the wound, but makes the dressing come loose. Change the dressing after every workout.

When to see a dermatologist rather than self-care

See a doctor from the start, without waiting to see how it goes, when:

The wound is wider than the injured person’s palm, or deep enough to show yellow fat
The wound is on the face, around the eyes, on the lips, over a joint, or on the genitals
Stones, sand, tar or metal fragments are embedded and will not wash out
Bleeding does not stop after 10–15 minutes of continuous pressure
It came from an animal bite, a human bite, or a rusty object
The injured person has diabetes, weakened immunity, or takes blood-thinning medicine
The wound shows no sign of getting smaller after 2 weeks
The scar starts to become raised, firm, itchy and spreads beyond the original wound edge

See other skin conditions at the skin conditions overview page

In brief

An abrasion is a wound where skin is scraped so that the epidermis comes off, and it may reach the upper dermis. It is wide but shallow, with blood oozing across the wound bed.
What makes a wound clean is the amount of water and the pressure, not the strength of the liquid. Use 0.9% saline or plenty of running clean water, and do not pour alcohol or hydrogen peroxide onto the wound bed.
Keeping a wound covered and moist is better than letting it dry. It heals faster, leaves fewer marks, and you must not pick the scab.
Most clean wounds need only petroleum jelly and a suitable dressing. Topical or oral antibiotics are used in specific cases only, not for every wound.
Decide about the tetanus vaccine on the first day, based on the type of contamination and vaccine history, not on the size of the wound.
The one thing to do right away is to rinse the wound with plenty of clean water within the first hour, then cover it to keep it moist. See a doctor immediately if redness spreads, pain increases after 48 hours, there is pus, a fever, or embedded debris that will not wash out.

Frequently asked questions

Should an abrasion be covered?

Yes, and it should be covered in a way that keeps it moist. The moist wound healing principle is the standard of wound care in hospitals worldwide, because new skin cells move across and close the wound faster when the wound bed is not dried out and crusted. A wound that is covered properly heals about 30–50% faster, hurts less and scars less than one left to dry and scab over. A dressing also protects against dust and friction during the day. The important point is that “moist” does not mean soggy. If the skin around the wound turns white and mushy, the dressing is not absorbing enough fluid, and you need to switch to a type that absorbs more, such as a foam dressing, rather than going back to leaving the wound open.

How can an abrasion heal faster?

Three things really make a difference: wash it clean in the first hour with saline or plenty of clean water, keep it moist with a dressing suited to the amount of fluid, and do not pick the scab or let the wound dry and get wet repeatedly. In addition, eat enough protein, stop smoking, which clearly reduces blood flow to the wound, and keep blood sugar well controlled if you have diabetes. A superficial abrasion usually closes in 3–7 days, while one that reaches the dermis takes 10–14 days. What does not help it heal faster at all is strong ointments, herbal poultices and blowing on the wound to dry it.

What should I put on an abrasion?

For a wound that has been washed clean and shows no sign of infection, a thin layer of pure petroleum jelly is enough. Studies have found it heals as well as topical antibiotics, without the risk of contact allergy or antibiotic resistance. The topical antibiotics used most often are 2% mupirocin, applied 3 times a day for 5–7 days, or 2% fusidic acid, applied 2–3 times a day for no more than 7 days, used when the wound is dirty or yellow crusts are starting to appear. Be careful with ointments containing neomycin or bacitracin, as they are a common cause of contact allergy rash. If the wound becomes itchier and redder after applying it, suspect an allergy to the ointment. Choosing the right product for each wound is the doctor’s decision.

Do you need antibiotics by mouth for an abrasion?

Most of the time, no. Taking antibiotics just in case for a clean wound does not reduce infection, but it raises the chance of resistant bacteria, drug rashes and diarrhoea. Situations in which a doctor will often consider oral medicine are a wound that is clearly infected, wounds from animal or human bites, wounds contaminated with soil or dirty water, and wounds in people with diabetes or weakened immunity. Commonly used medicines are cloxacillin 500 mg four times a day for 7 days, or cephalexin 500 mg four times a day. People allergic to penicillin are often given clindamycin 300 mg four times a day. What shows that it is working is that the red edge shrinks and the fever settles within 48–72 hours. All of these must be prescribed by a doctor. Do not buy them to take on your own or use leftovers from a previous course.

Can I shower with an abrasion?

Yes, from the first day, and you should, because cleanliness of the skin around the wound affects infection. The recommended way is to use a waterproof dressing, or to remove the dressing and let clean water run over the wound briefly. Do not soak, scrub or rub soap directly onto the wound bed. Afterwards, pat dry with a clean cloth and re-cover immediately. What needs to wait is soaking in a bathtub, onsen, swimming pool, sea or natural water, which should wait until the wound has fully closed and no longer weeps, generally about 7–14 days, because still water and shared water contain bacteria that can infect an open wound.

What should I not eat with an abrasion?

Medically there are almost no food restrictions for an ordinary abrasion. The belief that you must avoid eggs because the wound will become raised, or avoid fermented and pickled foods and seafood because the wound will fill with pus, has no medical evidence behind it. The real restriction applies only to people who are already allergic to that food. On the contrary, what you should eat enough of is protein, because the body uses it directly as raw material to build collagen and repair the wound, along with vitamin C and zinc from a balanced diet. It is people who do not get enough protein whose wounds heal clearly more slowly than others. What you should truly avoid is cigarettes, which reduce blood flow to the wound and slow healing significantly.

Written by Dr. Patara Voravutinon, Dermatologist · Last reviewed 14 September 2026