sensitivity to light, particularly sunlight, as takes place in photogenic epilepsy and albinism. Conditions characterized by escalated sensitivity to the impacts of sunlight on the skin are inclusive of xeroderma pigmentosum and systemic lupus erythematous. Photo-sensitivity might take place as a negative response to particular drugs, like thiazides, St. John's wort, sulfonamides, carbamazepine, tetracyclines, and the phenothiazines. In these instances, it frequently takes the form of a rash or other skin reaction. Photosensitivity might also imply an immune response in some people who manifest allergy indicators after exposure to severe light.
PHOTOSENSITIVITY: "Photosensitivity can be a painful condition for those who experience it."