What should you know about products for pimples?

A pimple can be a blocked or inflamed hair follicle, but similar bumps can occur with folliculitis, rosacea, perioral dermatitis, or razor bumps. Their appearance, location, itch, tenderness, and relationship to shaving help guide the choice of treatment. Acne may include blackheads, whiteheads, and deeper tender lesions. A product that helps acne can irritate another condition, especially around the eyes, nose, and mouth.

Cleanse gently, avoid squeezing, and choose a non-comedogenic moisturiser and sunscreen. Benzoyl peroxide can reduce acne-causing bacteria and inflammation, while salicylic acid can help clear pore contents. Start one active at a time on a small area, use it less often if dryness develops, and protect fabrics from benzoyl peroxide bleaching. Do not layer several harsh products or scrub the skin. LED light therapy may be discussed as an add-on, but it does not replace assessment for deep or scarring acne.

See a dermatologist for deep painful lesions, scarring, recurrent flares, extensive rash, or bumps that itch, burn, or cluster around the mouth. Seek prompt care for rapidly spreading redness, marked swelling, fever, or eye symptoms. If a new product causes swelling, blistering, or breathing difficulty, stop using it and seek urgent help.

Do these bumps fit acne, or could they be folliculitis, rosacea, perioral dermatitis, or razor bumps? Which active should I start first? How can I prevent dark marks or scars?