G. After many years, chronically sun-exposed skin may become thick and wrinkled. In a small percentage of cases, protoporphyrin accumulates to toxic levels in the liver, leading to liver failure. Treatment and prognosis there is no cure for this disorder; however, symptoms can usually be managed by the simple expedient of limiting su. Cheap Generic Pills N fund erythropoietic protoporphyria research and education fund patient education material eppref newsletter contact us it is probably a good idea for people with epp to wear (or carry) a medicalert bracelet, mainly because of the danger of operating room lights (they can cause severe photosensitivity of internal organs as well as skin), and.