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Hello from JustAnswer.
No, we are unable to provide prescriptions through this site, whether antibiotics or other medicines.
Unfortunately, there is no good home remedy for bacterial vaginosis. There has been some hope that probiotic supplements or yogurt may be able to help, but the evidence is mixed and consequently not recommended. So if the symptoms are recurring, you can contact the doctor that prescribed the metronidazole. If there is a delay in being able to contact your doctor, such as because of the holidays, there is no problem to trying yogurt or a probiotic supplement.