I need support please . And advice

I recently got back from living in Florida and I contracted and std from my boyfriend that liked to cheat on me without me knowing  . I don't know what to do . I'm speechless . I've never had an std . I have herpes ... And it's a constant pain .  If you have any advice please comment ... I've already wen to dr and got medicine but it keeps coming back every 3 - 4 weeks ...