Azelaic acid gel is a prescription gel that treats rosacea bumps and pustules in adults. Learn about dosage, side effects, interactions, and more. Azelaic acid is a multi-functioning compound that is highly effective in treating acne, rosacea, dull skin and hyperpigmentation and melasma. How Picspot Gel works Picspot Gel contains azelaic acid that works by killing the acne-causing bacteria and reducing inflammation (redness and swelling) of the skin. Aziderm Gel is a topical medicine used to treat acne. It contains azelaic acid as its active ingredient. This medicine has antibacterial actions and it also reduces swelling, redness and inflammation on skin. Acne is a common skin problem most of us experience. To reduce the spread of acne, you should incorporate basic skin hygiene into your routine. Clean your face gently with a mild soap/facewash, limit the use of oil-based or greasy cosmetics and avoid rubbing, scratching, or squeezing ...