Sun rash and sun allergy are terms often used to describe a number of conditions in which an itchy red rash occurs on skin that's been exposed to sunlight. A common form of sun rash is polymorphic light eruption, also known as sun poisoning.
Also to know is, how long does sun allergy rash last?
How long the reaction lasts depends on the type of sun allergy: PMLE — The rash of PMLE usually disappears within two to three days if you avoid further sun exposure. Over the course of the spring and summer, repeated sun exposure can produce hardening, a natural decrease in the skin's sensitivity to sunlight.
Can you get rash from Sun?
While every type of skin type can get sunburned, PMLE is an allergic reaction to the sun's ultraviolet rays. Its form varies — it can produce an itchy rash or blisters or raised red blotches — and its severity varies widely. Sunscreen products help, but they can't entirely prevent PMLE.
What are Sun bumps?
Symptoms of PMLE are a mild to severe skin rash, usually appearing within 30 minutes to several hours of sun exposure. The rash may be itchy and have these characteristics: Small bumps all over the body, predominantly in sun-exposed areas.