skin disorders
Photosensitivity Reactions
Solar urticaria
 Hives (large, itchy red bumps or welts) that develop after only a few minutes of exposure to sunlight are called solar urticaria. The hives typically last for minutes or hours. A person can be prone to developing solar urticaria for a very long time, sometimes indefinitely. People with large affected areas sometimes have headaches and wheezing and feel dizzy, weak, and nauseated. 