Psoriasis is not psoriasis, psoriasis is also called psoriasis, psoriasis is another inflammatory disease of the skin, sometimes the clinical manifestations are slightly similar to psoriasis, so it is named psoriasis. Parapsoriasis is relatively rare, and can be divided into many types, such as small plaque-type parapsoriasis, large plaque-type parapsoriasis, as well as some acute or chronic acne-like furuncle, which can be distinguished from psoriasis by taking a skin biopsy with a small surgery and observing the difference through a microscope. If psoriasis has been diagnosed, and there is no specific drug treatment, it can be treated with topical medication or oral medication according to the different types, or by using light methods. Psoriasis treatment is different from parapsoriasis, and the focus is on diagnosis, through pathological examination to confirm the diagnosis of psoriasis or parapsoriasis, and then carry out the corresponding treatment.