Can I use azithromycin for prophylaxis of chlamydia? I know test first. But can be used after the unprotected sex? And how soon can you start?

STD prophylaxis. This is not a common or public health recommendation. We are over using medications like Azithromycin and chlamydia is getting harder and harder to cure. I do not know of anyone who would put you on chlamydia prophylaxis.