![]() Risk factorsĪ sun rash can affect anyone, regardless of age or gender. Usually, the sun rash causes small bumps that appear on the skin a few hours after exposure. The condition affects roughly 10–20% of the population. Experts suggest that occurs when a person has a delayed hypersensitivity reaction to an antigen expressed after exposure to sunlight or artificial sources of ultraviolet (UV) radiation. Polymorphous light eruption is an immune-mediated rash that typically appears in the spring or summer. But if the condition becomes severe, it can lead to: In fact, 2022 research indicates that polymorphous light eruption is typically uncomplicated. In some cases, an individual may have a remission from the rash and not develop it for a few years.Īlthough symptoms may feel bothersome, a sun rash usually does not cause complications. The condition may start at any time and can continue through a person’s life. The skin bumps or lesions usually heal without any scarring. Read more about signs of a rash on darker skin.Īccording to the Skin Cancer Foundation, polymorphic light eruption symptoms most often appear on areas of the body exposed to the sun, including: For example, on darker skin, the spots may appear white or gray. Rashes can appear differently on different skin tones. Some sun rashes cause small red dots, which are 2–5 mm in size. Typically, symptoms start about 2 hours after exposure to the sun. less or no reaction on the face and other areas of the skin that are exposed to the sun most of the year.raised patches or bumps that itch or burn and are found in sun-exposed areas.a rash that appears where the skin was exposed to the sun.This condition involves an allergic skin reaction to a substance in combination with UV rays.Ī common substance that may also cause photoallergic dermatitis and a rash is benzophenone-3, found in some sunscreens. Some people may also have photoallergic dermatitis. While it may vary, most people with a sun rash develop the same pattern of symptoms each year. In the summer, the rash is not as severe. Most common sun-induced rashes, such as polymorphic light eruption, are worse upon initial exposure to the sun, such as in the spring. fragrances in cosmetics, such as sunscreen chemicals.psoralens in plants, vegetables, and fruit.photo contact dermatitis due to chemicals such as:.drug-induced photosensitivity as a result of the following types of medications:.The sun can stimulate numerous types of rashes, 2021 research says. According to the American Osteopathic College of Dermatology, a sun rash is the most common type of skin disease that occurs due to sunlight.
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