The infection is caught by sexual contact with an infected person, but occasionally may recur after the initial infection has been treated. Regular sexual partners should also be tested and treated to prevent reinfection. Do not have intercourse until a further test shows that you have been cured. Directions for taking the antibiotics Metronidazole may cause nausea or an upset stomach. You can reduce these side effects by taking the tablets after meals.
Some people experience an unpleasant taste in the mouth when taking metronidazole.
This subsides soon after the treatment is completed. Avoid alcohol during treatment and for 3 days after treatment, or a severe hangover may result. Do not take tinidazole if you are pregnant or breastfeeding.