If you have itching after intercourse, it is considered to be caused by semen allergy, it is recommended to wash the vagina with cleansing gel, and then apply Parasol ointment or mometasone ointment on the vaginal opening, which will significantly relieve the itching symptoms. In addition, after intercourse vulvar itching should also be ruled out due to vulvovaginal pseudomycosis, or trichomonas vaginitis caused by vulvar itching, it is recommended to go to the hospital to check the routine of the leukorrhea, mainly according to the infected pathogens and then give the appropriate medication. For patients with vulvar itching after coitus, it is recommended not to eat acidic and spicy, stimulating food, do not develop the habit of using pads.