Open Question: Azithromycin for Chlamydia?

I saw the doctor and had the test about a week ago. It showed that I got Chlamydia. I was given 1G of Azithromycin (totally 4 tablets) for a single does 7 days ago and I took it. I didn't feel there's any improvement the first 3 days after I took. From the 4th day, I started feeling better. Right after I woke up, I went to the washroom, I still felt some burning and itchy inside the tip