trichomoniasis
"So I was diagnosed with trich yesterday (cheating  ex boyfriend gave it to me) . My ob-gyn prescribed me Flagyl 500mg x 4 pills for 1 single dose. 24 hours have passed since I took the medication and I feel much better. I'm having less vaginal irritation, burning and I feel comfortable down there. It also helps that my doctor also prescribed me lidocaine jelly which helps numb the area"