Vaginal itching is a sign of vaginal inflammation. First of all, it is recommended to go to the hospital for a routine leucorrhoea examination to find out what kind of vaginitis it is, and then use medication according to the nature of the vaginitis. If you have a history of sexual activity, for bacterial vaginitis and trichomoniasis, you can use metronidazole suppositories once a day for 7 days before bedtime. If you have no sexual history, you should take metronidazole tablets 400mg twice daily for 7 days, and then go back for a routine check of the leucorrhoea after 1 week or after your next menstrual period to see if the vaginitis is cured. If it is mycosis vaginalis, you can use Fluconazole capsule, 150mg, orally for 1 time, stop taking the medicine for 1 week or go back for the routine test after the next menstruation to see if the vaginitis is cured. If the routine test is normal and there is a history of sexual intercourse, it is recommended to further check whether there is mycoplasma, chlamydia or condyloma acuminatum causing vaginal itching, and then use medication according to the test results. If it is mycoplasma or chlamydia, you need to use azithromycin 1 gram and take it orally once. If there are warts, you need to visit a dermatologist to consider laser excision and antiviral treatment.