Is it possible to be allergic to the sun?
People can be allergic to almost anything — and that includes the sun. In fact, several different types of sun allergies have been identified in recent years. An allergy occurs because your immune system overreacts to something harmless in the environment that your immune system has deemed as harmful. As your immune system fights the allergen it releases histamine, a chemical that causes most of the typical allergy symptoms like sneezing, runny nose and hives [source: WebMD]. Sun allergies most commonly manifest themselves in the form of a rash. The rash may be accompanied by patches of scaly skin, raised spots or even blisters and can last for days [source: WebMD
