Chlamydia does not go away on its own, so it must be treated with antibiotics. Once treatment is taken, it will take one dose of antibiotics or one cycle of antibiotics for it to go away. Chlamydia is an STD, or a sexually transmitted disease. This means that if one person has it, their partner or partners must also be treated to stop the cycle. If not, even the person initially treated for chlamydia can get it again.