STI/chlamydia

So I have seen a doctor about an issue I was having, I was told it was chlamydia. I was prescribed a medication and went back 2 weeks to be checked again. When I went back to get the results I was told that it was chlamydia again and they prescribed me something else that I was to come back in 2 more weeks to be rechecked. The third time I went I had the most painful experience & I never went back. The smell and discharge never went away but I am so scared to go back to the doctor and experience that again. I have researched where you can get some type of antibiotics over the counter or like online through a website where you chat with a doctor. Anyone have recommendations on a good site I can do this on? Or something I can buy to treat it?