Hello and thank you for your question,
Trichomoniasis is a very common sexually transmitted infection which is also very easy to cure. Often women have no symptoms of this infection and the bug is only picked up during routine pap smears but at that point, it is important to get treated.
This infection can only be treated with a prescription medication called Flagyl (Metronidazole) and, unfortunately, there is nothing over-the-counter which will help you. Also, it is extremely important that your bed partner also gets treated since it is sexually transmitted and you can continue to pass the infection to each other back and forth.
I hope you find this information helpful. Please feel free to follow-up with any other questions you might have.
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Best wishes and good luck,