Home remedies for skin allergy due to sun

Sun sensitivity can cause an itchy or burning rash on exposed skin, sometimes with small bumps, patches, or blisters. Polymorphic light eruption is one possible explanation, but medicines, skincare ingredients, heat, and other skin conditions can also produce a rash after outdoor exposure. The timing, body areas involved, and whether covered skin is affected help a clinician work out the cause. Do not assume every post-sun rash is an allergy.

Move indoors or into deep shade and cover exposed skin with loose clothing. Cool the area with a clean damp cloth or a lukewarm rinse, then pat dry. Apply a bland fragrance-free moisturiser if the skin is intact, and drink fluids normally. Avoid scratching, peeling blisters, hot showers, perfumed products, and new remedies on irritated skin. Check medicines and skincare products with a clinician or pharmacist rather than stopping a prescribed medicine yourself. When outdoors again, use shade, protective clothing, and a broad-spectrum sunscreen that your skin tolerates.

Seek urgent help for facial swelling, breathing difficulty, faintness, extensive blistering, severe pain, or signs of heat illness. Arrange a medical review for a rash that recurs after modest exposure, affects covered areas, leaves marks, or does not settle after avoiding sunlight. A clinician may discuss topical corticosteroids for inflammation or narrowband UVB phototherapy for selected recurrent sun-sensitivity patterns.

Could a medicine or skincare ingredient be contributing? Which sunscreen and protective clothing suit my skin? Should I use a topical corticosteroid, and would specialist phototherapy be appropriate if this keeps recurring?