What should you know about red dots appearing on skin?

Contact Dermatitis can follow exposure to a cleanser, plant, metal, adhesive, or cosmetic. Heat Rash is linked with sweating and trapped heat, while Sunburn follows ultraviolet exposure. Psoriasis can produce recurring scaly plaques, and Rosacea can cause episodes of facial redness and visible small vessels. Cellulitis generally creates a warm, tender, enlarging area rather than scattered harmless-looking dots. A clinician may need to inspect the skin closely because similar colours can arise from different processes.

Take a clear photograph beside a familiar object for scale, and note the first location, new exposures, medicines, illness, exercise, and sun. Cleanse gently, avoid scratching and friction, and pause newly added cosmetic products. Keep the skin cool and shield it from further sun. Do not squeeze the spots or apply strong acids, bleaching agents, or borrowed prescription creams. If the marks remain after the skin settles, a dermatology review can clarify whether cosmetic treatment is relevant.

Seek emergency help for breathing trouble, swelling of the face or tongue, faintness, extensive blistering, or severe illness. Get prompt medical care when dots spread rapidly, feel hot or painful, produce pus, occur with fever, or look purple and do not fade with pressure. Make an appointment for unexplained dots that persist, recur, bleed, or change in shape or colour.

What examination features separate irritation from infection or inflammation? Could any current medicine or supplement be relevant? Should I monitor these marks, treat them, or arrange a follow-up examination?