What causes sun allergy?

What causes sun allergy?

Your immune system mistakenly identifies sun-affected cells as foreign cells. That triggers a histamine reaction, leading to redness, inflammation, itching, and other symptoms. People of any race can develop solar urticaria, though it is more common in people with lighter skin.

What is it called when you are allergic to the sun?

Overview. Sun allergy is a term often used to describe a number of conditions in which an itchy red rash occurs on skin that has been exposed to sunlight. The most common form of sun allergy is polymorphic light eruption, also known as sun poisoning. Some people have a hereditary type of sun allergy.

Can you get a rash from the sun?

Polymorphous light eruption is a rash caused by sun exposure in people who have developed sensitivity to sunlight. The rash usually appears as tiny, inflamed bumps or slightly raised patches of skin. The reaction usually happens during spring and early summer when exposure to sunlight increases.

What is the best medicine for sun allergy?

The most effective treatment for sun allergy is avoiding sun exposure. For people who cannot avoid the sun or who have more intense reactions, certain treatments may help: Antihistamines such as loratadine, fexofenadine and cetirizine. Corticosteroids such as prednisone.

What is the best treatment for sun rash?

Most sun rashes will resolve on its own within 10-14 days, she said. “Over-the-counter aloe vera or anti-itch ointments can be helpful. Cool compresses or a cool bath can provide itch relief,” Melinda said. “If you have blisters, keep them clean and dry to help to prevent infection.”

How do I get rid of sun allergy permanently?

These steps may help relieve sun allergy symptoms:

  1. Avoid sun exposure. Most sun allergy symptoms improve in less than a day or two if you keep the affected skin out of the sun.
  2. Stop using medications that make you sensitive to light.
  3. Apply skin moisturizers.
  4. Use soothing skin remedies.