I lived in west Bengal. I am 24 years old. I have some problems with my pennies - sometimes I fell rashes in my penile head that's are red and that's don't hurt me and rashes goes on its own after 2 or 3 days. I had sex with sex worker before 2 years ago and tested for hiv two times that was after 3 months and after 6 months from the date of my last sex. Both test was done by rapid test kit in lab and both was negative. But my fear about std and hiv don't go away. What can I do right now? My English is not very good so sorry.