Cotrimoxazole ointment can be applied to the vulva, it belongs to a kind of antifungal drug, mainly for the treatment of ringworm, ringworm of the hands, ringworm of the feet, vulva with fungal infections can use this drug for external application, if the infection is bacterial, the treatment is not very effective. Most people who have mycosis fungoides tend to have increased secretions that irritate the vulva and cause itching. Applying compound ketoconazole ointment can improve the effect, but it cannot cure it. It is advisable to go to the gynecological department of the hospital and have a check of the white belt discharge to be sure. As long as the mycosis vaginalis is treated, the infection of the vulva can be treated, and it is advisable not to use drugs indiscriminately until it is determined.