Acne (pimples) is a common skin condition affecting teenagers and adults. Dr Lim Tzyy Huei explains why acne develops and keeps recurring, available treatments including topical medication, oral antibiotics and isotretinoin, expected improvement, acne marks and scars, and practical skincare advice.

Not every pimple-like bump is acne. Rosacea, folliculitis, perioral dermatitis, milia and keratosis pilaris can sometimes look similar but have different causes and treatments. Dr Lim Tzyy Huei explains how to recognise common differences and when a dermatological assessment may be helpful.

Rosacea is a chronic skin condition that causes facial redness, flushing, sensitive skin and sometimes acne-like bumps. Dr Lim Tzyy Huei explains common triggers, treatment options, skincare tips, how long treatment takes and ways to reduce repeated flare-ups.