What should you know about relief for sun rash?

Sun-exposed skin can become red, hot, itchy, bumpy, blistered, or sore after ultraviolet exposure. Heat and sweat may cause heat rash, while a sunscreen, fragrance, plant, or other product can cause contact dermatitis. Some medicines can make skin more sun-sensitive and trigger a drug eruption. A rash may also be unrelated to sunlight, including atopic dermatitis, psoriasis, ringworm, or scabies.

The pattern matters: note when it began, which areas were exposed, new products or medicines, heat or sweating, and whether anyone else has itching. Do not assume every rash after sun is sunburn, especially when it spreads to covered skin or keeps returning.

Move out of direct sun, cool the skin with a clean damp cloth, wear loose breathable clothing, and drink fluids. Use a bland moisturiser if it does not sting. Stop newly introduced skincare, fragrances, or suspected irritants until a clinician advises otherwise, and avoid scratching or breaking blisters.

Use shade and clothing to protect the area while it heals. Ask a pharmacist or clinician which treatment is appropriate, particularly if you take regular medicines, are pregnant, have extensive blistering, or have a history of severe reactions. Do not stop a prescribed medicine without medical advice.

Seek medical advice if the rash is extensive, painful, recurrent, infected-looking, or not settling after you leave the sun. Prompt review is needed for blisters, facial involvement, or a possible medicine reaction. Get urgent help for breathing difficulty, swelling of the lips or throat, faintness, confusion, severe headache, or widespread blistering and skin peeling.

Ask what pattern the rash suggests, whether a product or medicine could be involved, how to protect your skin while it heals, which treatments are suitable, and whether testing or a medication review is needed.