Tingling on one side inside the vagina is not always effective with compound metronidazole. There are many possible causes of tingling on one side of the vagina, such as inflammation of the vagina, injury to the vaginal mucosa, and cysts of the vestibular gland. Different causes require different treatments to be used, and not all disorders are effective with the use of Metronidazole Compound. Compound metronidazole suppositories are mainly used for trichomonas vaginitis and bacterial vaginosis. If the tingling on one side of the vagina is due to local inflammation caused by trichomonas or bacterial infection, the vaginal mucosa is congested and edematous, resulting in tingling symptoms. This is where the use of compound metronidazole suppositories can be effective. If the vaginal tingling is caused by vulvovaginal pseudomycosis, vestibular gland cysts, etc., you will need to use other medications such as clotrimazole to treat it, or use surgical treatment. If you have vaginal stinging pain, you need to see a doctor to check the cause of the problem and treat it under the doctor’s supervision, rather than using medication on your own.