Red spots on the skin: what to know

Record where they began, whether they are flat or raised, and if they itch, hurt, scale, crust, bleed, or contain fluid. Check whether they fade when pressed, follow hair follicles, form rings, or appear after a product, bite, heat, or friction. A clinician will also want to know about fever, new medicines, recent illness, travel, and changes in the mouth, eyes, nails, or joints. These clues narrow the possibilities without assuming that a symptom identifies one condition.

Clean gently, moisturise with a fragrance-free product, and protect the area from sun, rubbing, heat, and harsh exfoliants. Stop a newly introduced cosmetic or detergent if it seems connected. Avoid scratching, popping, or layering several active treatments. Photograph the area in consistent light and note whether the border, texture, or distribution changes.

Seek urgent care for red spots with breathing difficulty, faintness, facial swelling, rapidly spreading purple marks, extensive blistering, or severe illness. Arrange prompt review for fever, significant pain, warmth, pus, rapidly expanding redness, bleeding, or spots involving the eyes or mouth. Persistent, recurrent, or unexplained changes merit a skin examination.

Ask what features support the working diagnosis, whether a medicine or product could be responsible, what treatment is appropriate for the body site, and what change should trigger an earlier review.