The evidence is that most chlamydial infections clear up after a 7 to 10 day course of antibiotics. At the present time chlamydial antibiotic resistance is almost unknown. Long term or complicated chlamydial infection involving the prostate or the seminal vesicles may take longer to treat.
Remember: Antibiotics are one of the few classes of drugs that can actually cure a disease. However antibiotics cannot reverse any damage already done by the infection. This is why it is important to seek medical treatment as soon as possible. Tell the doctor if you are allergic or sensitive to antibiotics.
Generally speaking, most sexually transmitted infections are easy to treat and curable with the exception of some viruses. In some but not all countries effective treatment is also available for HIV/ AIDS.
"What happens if I don’t get a Chlamydial genital infection treated?"
There has been less research on the complications of chlamydial infection in men than in women. It seems likely that chlamydia may cause long term inflammation to the prostate gland and to the fine tubes that take sperm from the balls (testicles) to the penis. There is some evidence that chlamydial infection may eventually block the tubes with scar tissue. You will still produce semen but there will be a lack of the sperm needed for having children. Of course, if you don't get treated you are putting not only yourself but your female partner at risk of infertility.
Gonorrhoea has a similar effect to chlamydial infection in men but is often more severe. Complications of both infections are generally more severe in women than in men, so:
Remember: If you believe that you have an STI it is important that you make sure that your partner also has a sexual health check.