Doctors usually treat trichomoniasis with a single dose of either metronidazole or tinidazole, according to the Centers for Disease Control and Prevention. These medications are oral antibiotics. Because unpleasant side effects may occur, individuals should avoid alcohol for 24 hours after taking these medications.
After treatment for trichomoniasis, about 20 percent of people experience another infection within three months, explains the CDC. To reduce the risk of recurrent infection, individuals with trichomoniasis should not have sexual intercourse until all of their symptoms resolve. In addition, individuals with trichomoniasis should make sure their sex partners are treated for the infection. If left untreated, trichomoniasis can persist for months to years.