A severe case of<unk>  in an 11-year-old boy. A reaction typically begins within 24 hours of exposure and peaks at 48–72 hours after exposure. Initially, the skin turns red and starts to itch and burn. Large blisters (or bullae) form within 48 hours. The blisters may leave black, brown, or purplish scars that can last for several years. This hyperpigmentation of the skin is caused by the production of melanin triggered by the furanocoumarins. Although media reports have suggested that eye exposure to the agent can lead to temporary or permanent blindness, the risk of permanent blindness is not supported by existing research.<unk>  can affect people of any age. In children, it has been mistaken for child abuse.
Phytophotodermatitis
Ichthyosis acquisita
Urticaria pigmentosa
Ichthyosis bullosa of Siemens
Striate keratoderma
Poikiloderma of Civatte
Abietic acid dermatitis
Granulomatous facial dermatitis