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2. Solar urticaria - Wikipedia

   en.wikipedia.org/wiki/Solar_urticaria

   Solar urticaria is an immunoglobulin E-mediated hypersensitivity that can be introduced through primary or secondary factors, or induced by exogenous photosensitization. [15] [16] Primary SU is believed to be a type I hypersensitivity (a mild to severe reaction to an antigen including anaphylaxis) in which an antigen, or substance provoking an immune response, is "induced by UV or visible ...

3. Photodermatitis - Wikipedia

   en.wikipedia.org/wiki/Photodermatitis

   Photodermatitis, sometimes referred to as sun poisoning or photoallergy, is a form of allergic contact dermatitis in which the allergen must be activated by light to sensitize the allergic response, and to cause a rash or other systemic effects on subsequent exposure. The second and subsequent exposures produce photoallergic skin conditions ...

4. Polymorphous light eruption - Wikipedia

   en.wikipedia.org/wiki/Polymorphous_light_eruption

   Polymorphous light eruption (PLE) presents with itchy red small bumps on sun-exposed skin, particularly face, neck, forearms and legs. [1] It generally appears 30 minutes to a few hours after sun exposure and may last between one and 14 days. [3] The bumps may become small blisters or plaques and may appear bloody, [3] often healing with ...

5. These Pictures Will Help You Figure Out What That Weird Rash ...

   www.aol.com/pictures-help-figure-weird-rash...

   26 pictures of skin rashes to help you identify your skin rash. ... virus, irritant, medication, or autoimmune disease, she says. ... fever, hair loss, chest pain, mouth sores, or sun sensitivity ...

6. Actinic keratosis - Wikipedia

   en.wikipedia.org/wiki/Actinic_keratosis

   Actinic keratosis. Actinic keratosis (AK), sometimes called solar keratosis or senile keratosis, [1][2] is a pre-cancerous [3] area of thick, scaly, or crusty skin. [4][5] Actinic keratosis is a disorder (-osis) of epidermal keratinocytes that is induced by ultraviolet (UV) light exposure (actin-). [6]

7. How to spot 18 common — and not so common — bumps, rashes and ...

   www.aol.com/news/spot-18-common-not-common...

   These tell-tale signs and photos will help you identify and treat common skin disorders — and less common disorders of the skin. How to spot 18 common — and not so common — bumps, rashes and ...