What Is Photosensitivity?
1. Photoallergy
Photoallergy, photodermatitis, or sun poisoning is a form of photosensitivity. It occurs when the allergen is activated by light to result in an allergic response such as a rash or other effects. It can cause issues such as burning sensation, swelling, itchy rash where there is peeling of the skin, and difficulty breathing. Some patients may also experience nausea. In the affected areas, a brown or orangish tint may form. Photoallergy may be caused by various medications (such as nonsteroidal anti-inflammatory drugs, retinoids, oxybenzone, psoralens, tetracycline antibiotics), and plants (such as giant hogweed, common rue, burning bush). Prevention includes avoidance of exposure, using protective clothing like gloves, avoiding sunlight, and wearing sunscreen.
