A sun rash is an immune system reaction to sunlight exposure that causes itchy bumps, raised patches, or blisters on your skin. Here’s why and how to find relief.

Objective: To investigate possible photoallergic reactions in patients ... true delayed type IV hypersensitivity (allergic contact dermatitis and photoallergy) to sunscreens is more infrequent ...

If the patient has reported a history of steroid use, the first treatment step should be to discontinue the medication's use immediately. However, the patient should be aware that this may result ...