A sudden red, itchy, burning rash after sun exposure can feel alarming, especially when it appears within minutes of being outdoors. In this video, Anita’s concern is explained through the possibility of polymorphic light eruption, commonly known as sun allergy. This skin reaction happens when UV rays trigger an immune response in the skin, leading to redness, itching, bumps, burning, or sometimes blister-like changes on sun-exposed areas. It is more commonly seen in women and may flare after travel, beach outings, or sudden intense sunlight exposure. The video highlights why the skin reacts this way, what signs to watch for, and why proper sun protection matters. Consistent use of SPF, UV-protective clothing, wide-brimmed hats, sunglasses, cool compresses, and soothing moisturizers can help reduce discomfort. If the rash keeps returning, spreads, or becomes severe, consult a dermatologist for proper diagnosis and treatment.