Hello Dr. I had protected sex with sex workers at dubai last year september 2022 then I took the std test 2 time in jan 2023 is a negative report. Then I was consulted with sexology doctor january month last again take test in hospital report was negative. After 9 months I was consulted another doctor june 15 2023 take a std test report is negatives. But still I am worried mean while I have problems on my under skin like scare but no itching nothing, when I have sex with my partner we are always burning sensation we take antibiotics it's a temporary cure .again doing sex again we get so please give any solutions sir.