Mycosis fungoides is usually caused by infection with Pseudomonas vulvovaginalis, which is an opportunistic pathogen and is mostly transmitted endogenously. There are also some patients who can be infected through sexual intercourse. Another part of the patient through close living contact, such as contact with the infected person’s underwear, underwear, bed sheets, covers, etc., can also cause moldy vaginitis and other infections. Therefore, during the treatment of mycosis vaginalis, it is necessary to prohibit sexual intercourse, and to separate underwear, panties, and basins from family members, and to wash underwear, panties, bed sheets, and bedspreads with boiling water. The treatment of mycosis vaginalis is mainly vaginal drugs, vaginal topical drugs including miconazole nitrate suppositories, mycotoxin suppositories, clotrimazole suppositories and so on.