Metronidazole Gel is generally used for 5-7 days as a course of treatment, depending on the patient’s condition. Metronidazole gel is generally used for the treatment of trichomonas or bacterial vaginitis, usually 5-7 days as a course of treatment, but after the use of the drug after the onset of time, is different from person to person. Metronidazole has anti-anaerobic and trichomonas effects; the onset of action varies from person to person, and may be affected by the severity of the disease, the dosage of the drug, and the patient’s sensitivity to metronidazole in a number of ways. Most patients are 5-7 days for a course of treatment. It is important to note that dryness, burning, redness and swelling of the skin may occur during the course of the medication, and prompt medical attention is required. It is also recommended to use the medication under the doctor’s supervision and not to use the medication at your own discretion.