Or so i think. i found a pill bottle for azithromycin 500mg tablets a few days ago that belongs to my partner. he says it's nothing he used this site and added his symptoms and that's what he was giving to take...but i'm not for sure that's the case.

Most azithromycin prescriptions are for non STD problems like bronchitis, skin infections, and other conditions. The only common use of azithromycin for STD is a single dose (4 pills all at once) to treat chlamydia. But in view of your apparent suspicion, it seems clear you need a sensitive, caring discussion with your partner about STD risks. Good luck.