Vaginal douching is mostly used in the treatment of vaginitis. There are two common methods: one is for the patient to douche herself with the help of a douche, after filling the douche with lotion. The other is douching in a hospital. The doctor uses a vaginal speculum to fully expose the vagina and then injects the solution into the vagina while wiping it with a cotton swab. Women do not usually need vaginal douching. When suffering from mycosis, trichomoniasis or bacterial vaginitis, you need to choose a suitable douche and vaginal medication under the guidance of your doctor. During the treatment period, sexual intercourse is forbidden. Wear loose cotton underwear and disinfect the underwear with boiling water to keep the pubic area clean and hygienic. Eat a light diet, do not eat spicy and stimulating food, and go to the hospital for a review after a week of stopping the medication.