Learn how xanthelasma relates to cholesterol, how it differs from milia and syringomas, and the options, risks and recurrence involved in removal.

Learn how carbuncles differ from single boils, when to seek urgent care, why drainage may be needed, and how to care for the wound at Siam Dermatology.

Post-inflammatory hyperpigmentation (PIH) is a darker patch of skin that appears after the skin has been inflamed, for example dark marks from acne, eczema, scr

Dull skin is a concern that many people in Thailand take seriously. The hot, humid climate and intense sunshine cause skin to lose its brightness and moisture a

Stretch marks, known medically as striae distensae, are line-like marks that appear on the skin when it is stretched faster than the collagen and elastin fibers

Scalp ringworm (Tinea Capitis) is a fungal infection of the scalp and hair. It is most common in school-age children aged 5–15 and spreads easily through direct

During pregnancy, a mother's skin goes through many changes driven by hormones, such as melasma and dark spots (Chloasma/Melasma), dry skin, stretch marks and a

Skin conditions in children are a common health problem and often worry parents. A child's skin is more delicate than an adult's, so it is more prone to irritat

Ceramide is a lipid produced by the body in the skin, acting like the "cement" that holds skin cells together. It makes up about 50% of all the lipids in the ou

As we get older, the skin goes through many changes: collagen and elastin decrease, skin becomes drier, sebum (the skin's natural oil) production falls, and dee

Niacinamide is a water-soluble form of vitamin B3 that can be used as a skincare ingredient on almost every skin type. It is one of the best-researched skincare

Hyaluronic acid (HA) is a substance the body makes naturally. It is found in large amounts in the skin, tears and joints. Its key feature is the ability to attr

Sensitive skin is a common condition among many people in Thailand. This skin type has a weaker-than-normal skin barrier, so irritants and environmental factors

AHA (Alpha Hydroxy Acid), BHA (Beta Hydroxy Acid) and PHA (Polyhydroxy Acid) are chemical exfoliants widely used in skincare. They help remove old skin cells an

Erythema Nodosum (EN), or painful red lumps on the legs, is inflammation of the fat layer under the skin (panniculitis) caused by an overreaction of the immune

Retinol (vitamin A) is one of the skincare ingredients with the most research behind it for slowing skin aging, reducing wrinkles and improving skin texture. Re

Granuloma Annulare (GA) is a non-infectious inflammatory skin condition marked by red or skin-colored rashes arranged in rings, most often on the backs of the h

Vitamin C (L-Ascorbic Acid) is an important antioxidant for the skin. It stimulates collagen synthesis, helps reduce dark spots and dull skin, and lessens damag

Impetigo is a bacterial infection of the superficial layers of the skin, most common in children. Its hallmark is blisters or small erosions that dry into honey

Melasma is a common pigmentation condition in Asian women, and it is often resistant to treatment. A key reason many people never get rid of their melasma is th