I had physical with my wife for the first time and she was on periods, but it was not penetrative sex. After that day I feel a burning sensation in my penis, but not when passing urine, I've done my urine culture test,HiV all are negative. urologist suggested me some antibiotics and some urine pain reliever medicine but I've no pain/burning during passing urine. 10 days are completed but no effect even getting worse time by time .. now I've a burning desire in anus too ... Please suggest some solution and which type of problem is this.