What should I do now? My cheating bastard bf gave me chlamydia.?

Sooo... My boyfriend came to me a while ago and told me i should go to a clinic and get an sti check because it turns out he was cheating on me then caught it and we have been sexually active while he has had it... I went and got a check. FML now i have it too the fucking bastard... What to do? Im allergic to antibiotics which are given to treat it.:'(
What should I do now? My cheating bastard bf gave me chlamydia.?
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