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 which are often eczematous.
Many medications and conditions can cause sun sensitivity, including:
Photodermatitis can also be caused by plants. This is called phytopho...
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Photodermatitis
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