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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 same goes for wearing clothes made from materials that may cause itching. Before you go out in the sun, you can also throw on protective clothing like long sleeve tops, hats, and sunglasses ...
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 ...
It can appear hours to days after exposure. ... typically develops on sun-exposed areas like the face and the arms. ... by Parvovirus B19 and presents with a red rash on the cheeks, arms, and legs ...
Phytophotodermatitis, also known as berloque dermatitis, [1] [2] [3] margarita photodermatitis, [4] [5] lime disease [6] or lime phytodermatitis [6] is a cutaneous phototoxic inflammatory reaction resulting from contact with a light-sensitizing botanical agent (such as lime juice) followed by exposure to ultraviolet A (UV-A) light (from the sun, for instance).
True sun spots — lentigines — are caused by sun exposure, the experts say. When you're in the sun, your skin produces the pigment melanin to protect itself, the Mayo Clinic explains .
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]
An icepack directly onto the skin provides instant relief. For milder cases, the intense itch/scratch cycle can be broken by applying a topical skin coolant gel containing menthol, camphor, or other topical coolant to affected itchy areas, and then consistently applying 100+SPF sunscreen to affected skin of arms, shoulders, neck, etc., whenever they are expected to be