General Skin Disease Examination and Treatment — Siam Dermatology Samut Prakan

General skin diseases are the group of skin problems seen most often in everyday life, from simple itchy rashes, acne and allergic rashes to complex conditions that need close monitoring, such as skin cancer. Many symptoms look alike, yet the causes and treatments differ greatly. A diagnosis from a specialist dermatologist helps you get the right answer, choose medication that suits the condition, and lower the chance that the problem becomes chronic or spreads. At Siam Dermatology Samut Prakan, our specialist dermatologists are ready to diagnose, prescribe, and follow your treatment progress continuously.

Common skin conditions we care for

The skin conditions our clinic examines and treats regularly cover both everyday problems and diseases that need specialized care, including:

• Acne and acne marks: all types of acne, including acne marks and dark spots that remain after the acne has healed.

• Atopic dermatitis and other skin inflammation: atopic dermatitis, contact dermatitis, and eczema, which often cause itching and tend to come and go.

• Hives (urticaria) and drug rash: itchy, raised red welts that appear quickly and can subside on their own, as well as drug rashes.

• Psoriasis: a chronic immune-related disease in which the skin thickens into plaques and sheds scales.

• Fungal, bacterial, and viral skin infections: including ringworm, tinea versicolor, scabies, herpes simplex, shingles, and warts, each of which needs a different medication and care approach.

• Moles, skin tags, and skin lumps: assessment of moles, skin tags, seborrheic keratoses, and birthmarks to tell normal lesions apart from those that need monitoring.

• Skin cancer: screening and assessment of lesions suspected to be skin cancer, to reach a diagnosis and plan appropriate care.

• Hair loss, dandruff, and nail disorders: hair loss and dandruff, as well as nail conditions that are often overlooked.

When should you see a dermatologist?

Most skin problems are not dangerous, but some symptoms are a sign that you should be examined by a specialist instead of buying medication to use on your own.

• A chronic rash or one that does not clear: a rash that keeps coming and going, or does not improve within two to three weeks.

• Severe itching: itching that disturbs your sleep or daily life.

• A spreading rash: a rash that keeps getting wider or spreads across the body.

• Unusual bumps or lumps: a mole or lump that grows quickly, changes color, has an uneven border, bleeds, or does not heal.

• Unusual hair loss: patchy hair loss, unusually heavy shedding, or scalp symptoms along with hair loss.

If you have any of these symptoms, seeing a doctor early helps ensure an accurate diagnosis and lets treatment start in time.

How we diagnose and treat

An accurate diagnosis of a skin disease starts with a systematic assessment. At our clinic, we follow these steps:

• Medical history and skin examination: the doctor asks about your symptoms, how long you have had them, your allergy history, and the medications you use, and examines the rash or lesion closely.

• Further tests when necessary: in some cases the doctor may use a dermatoscope to see details of a lesion that the naked eye cannot, or scrape the skin to test for fungus when an infection is suspected.

• Skin biopsy: when skin cancer or a complex condition is suspected, the doctor may consider taking a tissue sample for pathology testing to confirm the diagnosis.

• Personalized treatment plan: the doctor explains the results and plans treatment together with you, to suit the type of disease and each person's lifestyle.

• Continuous follow-up: many skin diseases need ongoing follow-up. Follow-up visits are generally scheduled within 1 to 6 weeks to assess your response and adjust treatment.

Basic skin care at home

While waiting to see a doctor, or for long-term skin care, these basic habits help reduce irritation and prevent skin problems from flaring up.

• Cleanse gently: choose a gentle cleanser, avoid scrubbing the skin hard, and avoid water that is too hot.

• Keep skin moisturized: apply a moisturizer regularly to maintain the skin barrier and reduce itching from dry skin.

• Protect skin from the sun: use sunscreen consistently to help reduce dark spots and melasma and to protect the skin from sunlight.

• Do not buy steroid creams on your own: avoid using topical steroids or antibiotics continuously without a doctor's advice, because they may change how the disease looks, make it harder to diagnose, or cause side effects.

Frequently asked questions

How do general skin diseases differ from cosmetic skin concerns? General skin diseases are conditions that affect skin health, such as rashes, acne, infections, or skin growths, and need diagnosis and treatment by a doctor. They differ from purely cosmetic services. Some conditions, such as melasma or dark spots, relate to both areas, and a specialist will assess how the problem should be managed.

Can I buy a cream for an itchy rash first? A mild itchy rash that clears on its own may be managed by keeping the skin moisturized and avoiding triggers. If the rash is chronic, spreading, or very itchy, see a doctor instead of buying steroid creams yourself, because the wrong type of medication may make symptoms worse or harder to diagnose.

Is a skin biopsy needed every time? No. A skin biopsy is done only when the doctor suspects skin cancer or a complex condition that needs a confirmed diagnosis. Most skin diseases can be diagnosed from the medical history and physical examination alone.

Where can I get general skin disease examinations in Samut Prakan? You can be examined by a specialist dermatologist at Siam Dermatology Samut Prakan. Book in advance via LINE @siamderm or call +66 61 448 7000.

If you are not sure what skin condition you have, or self-treatment has not helped, an examination by a specialist will give you the right answer and approach. Consult a specialist dermatologist at Siam Dermatology Samut Prakan. Call +66 61 448 7000 or LINE @siamderm to book in advance.

Written by Dr. Patara Voravutinon, Dermatologist · Last reviewed July 16, 2026