Photosensitivity - Wikipedia Photosensitivity is the amount to which an object reacts upon receiving photons, especially visible light
Photosensitivity (sun allergy) - DermNet Photosensitivity refers to various symptoms, diseases and conditions caused or aggravated by exposure to sunlight A rash due to photosensitivity is a photodermatosis (plural photodermatoses) If the rash is eczematous, it is a photodermatitis A chemical or drug that causes photosensitivity is a photosensitiser
Sun Allergy (Photosensitivity) - Harvard Health Sun allergies are triggered by changes that occur in sun-exposed skin It is not clear why the body develops this reaction However, the immune system recognizes some components of the sun-altered skin as "foreign," and the body activates its immune defenses against them
Photosensitivity - StatPearls - NCBI Bookshelf Photosensitivity refers to various symptoms, diseases, and conditions (photodermatoses) caused or exacerbated by exposure to sunlight [1] It is classified into five categories: primary photodermatosis, exogenous photodermatosis, photo-exacerbated dermatoses, metabolic photodermatosis, and genetic photodermatosis
Photosensitivity - The Skin Cancer Foundation Photosensitivity is heightened skin sensitivity or an unusual reaction when your skin is exposed to UV radiation from sunlight or a tanning bed You can become photosensitive as a result of prescription or over-the-counter medications, a medical condition or genetic disorder, or even by using certain types of skin care products
Photosensitivity - Dermatologic Disorders - Merck Manual Professional . . . Photosensitivity is a cutaneous overreaction to sunlight It can be related to photoallergy or phototoxicity and may be idiopathic or occur after exposure to certain toxic or allergenic substances or chemicals It can also sometimes be a feature of systemic disorders (eg, systemic lupus erythematosus, porphyria, pellagra, xeroderma pigmentosum)
Sun allergy (photosensitivity) Guide: Causes, Symptoms and Treatment . . . Despite the name, a "sun allergy" is not truly an allergy to the sun Instead, it is an immune system reaction in the skin triggered by sunlight, most often causing an itchy red rash The medical term for this condition is Polymorphous Light Eruption (PMLE)