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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.
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).
Photodermatoses is a skin condition resulting in abnormal skin reactions to ultraviolet (UV) radiation. [1] These abnormal skin reactions may develop into rashes. While reactions to UV radiation is common, true photodermatoses is considered when an abnormal reaction is caused by UV-A rays or radiation between 320 and 400 nm.
Hand-foot-and-mouth disease is a distinctive rash caused by the Coxsackie virus, as TODAY.com explained previously. As the name implies, "people will get blisters on their hands and feet, and also ...
What it looks like: Fifth Disease is caused by Parvovirus B19 and presents with a red rash on the cheeks, arms, and legs that can last for several weeks. This condition occurs most often in children.
Chronic and/or intermittent rashes which are not readily explained by history and physical exam often will benefit from further testing. Patch test A patch test (contact delayed hypersensitivity allergy test) [ 17 ] is a commonly used examination to determine the exact cause of an allergic contact dermatitis.
Hydroa vacciniforme (HV) is a very rare, chronic photodermatitis-type skin condition with usual onset in childhood. It was first described in 1862 by Pierre-Antoine-Ernest Bazin. [1] It is sometimes called "Bazin's hydroa vacciniforme".
Further episodes of the irritable rash occur several hours to days following subsequent sun exposure. [11] PLE appears on areas of the skin newly exposed to sunlight such as the visible part of the neckline, backs of hands, arms and legs, and feet, but less commonly the face. [2] [6] At these areas, there may be feelings of burning [9] and ...