After three days of stuffing metronidazole tablets and not using them, the condition may recur or even worsen. Metronidazole is an antibiotic with anti-inflammatory and anti-infection effects. However, its treatment time and amount should be used strictly as prescribed by the doctor. During treatment with medication, each cycle of medication is used for at least five days or more. And three days of medication may not cure the disease, while the condition may recur with uninterrupted symptoms such as itching, redness, swelling of the pubic area and odor of the leukorrhea. Some people stop the drug immediately after sex, it may aggravate the inflammation and infection, itching, redness and swelling phenomenon is more serious and other manifestations. Pubic discomfort, should be actively treated, do not stop their own random drugs, should be strictly in accordance with the doctor’s prescription application.