Received unprotected oral and had protected sex with a sex worker nearly four months ago. During sex she said she must of come on her period and got blood on my upper shaft. She didn't seem surprised so at the time I thought this was a little odd. 5 days later and I had intense tingling/irritation in my penis that to this day is still there.iv also had urge to urinate which lasted a week but went and my urine is very very frothy. 2 months after I've had tests for HIV,syphillis,hep b and the usual swab and urine tests for chlaymidia and they all came back neg apart from them seeing under the microscope that I had inflammation. I was given 1g ziyhromax for NFU which didn't help at all so I returned and was given a 7 day course of doxycycline which hasn't helped either. I have just finished that course and now have testicle ache, not badly but the odd shooting pain every 20 minutes or so. After being prescribed doxy the clinic told me basically not to come back and I had to argue a little just to get that antibiotic. He said I have to give it a chance to clear itself which after 4 months seems a little silly to me. I just don't know what to do now. I think I have slight red patch under my penis head which I showed doc but he said looks normal. I'm sure it wasn't there before and its not going so not sure what to think. I just want to be back to normal. Any ideas what my next step should be. Any advice is very welcome.