It depends on what meds you took if it will get rid of the e coli.
Have they tested your sperm for anything?
I'm always leery of docs saying that something shouldn't be causing pain. I would done 1 of 2 things, or both, really.
Maybe find a new doc, and let the doc know about the anal sex. You might need a different antibiotic.
AJ
I took Cipro and Azithromax, as well as a shot that the Nurse said would take care of Gonorrhea if I had it....which I didnt. Are there any Meds that would take care of Chlamydia, Gonnorhea as well as E. Coli? I could dig through my medical records and try to come up with something.... I am just afraid, after 18 months of it now, that it will cause permanent damage other than just pain.
The CDC recommended treatment for this is Ofloxacin 300 mg orally twice a day for 10 days OR Levofloxacin 500 mg orally once daily for 10 days. http://www.cdc.gov/std/treatment/2006/epididymitis.htm
Those can cure chlamydia and gonorrhea, as well.
AJ