Mycosis fungoides is a kind of T-cell lymphoma, the course of the disease develops slowly, the initial skin lesions are of various morphologies, and later can gradually develop into tumors or erythroderma. For limited mycosis fungoides or generalized early mycosis fungoides, the following can be considered: a. Local treatment 1, nitrogen mustard: 50ml of water with 10mg of nitrogen mustard, once a day, the effect of the more extensive infiltrative plaques is better. 2, medium-strength corticosteroid hormone preparation: 1-2 times a day topical application for 3 months, such as Enbutrin cream, fluticasone propionate. 3, bezarotene: 0.01% -0.1% bezarotene gel. 4, bezarotene: 0.01% -0.1% bezarotene gel. 5, bezarotene: 0.01% bezarotene: 0.01% -0.1% bezarotene gel. -0.1% Bezarotene gel is first applied once every other day, gradually increased to 4 times a day until tolerated. For erythrodermic mycosis fungoides and progressive mycosis fungoides, radiation therapy may be considered. In early mycosis fungoides, narrow-spectrum medium-wave ultraviolet light may be considered. Fourth, chemotherapy may be considered for patients with more advanced malignancy.