Vitiligo and psoriasis cause physical and psychological discomfort for millions of patients, who are often socially awkward. New Excilite - mu monochromatic excimer phototherapy technology for the treatment of psoriasis and vitiligo brought new technology revolution, it USES 308 nm wavelength of monochromatic excimer light of direct illuminate target area, and the traditional of uvb rays irradiation therapy and drugs (e.g., malaytea scurfpea fruit vegetable) longer wavelength ultraviolet irradiation treatment compared with the more rapid and targeted. Excilite-muon can also be used to treat alopecia areata, mycelial granuloma, metatarsal eczema and other skin conditions.