I had sx with my wife after 2 months gap. And my skin got red small pimple like things on the penis head. then we dind do sx after that. after 2 weeks i masturbated and the pimple kind of things be came more and slight pain and itching , then it spread on the soft shafts also. no pain on urinating. but slight itching under penis head. i consulted a doctor and applied Neosporin for 2 days and couldnt find any change. What it could be? Sometimes when i travel i used to get small red ness on the penis head which used to disappear after 3 days. what is this infection? how long it persists? do i change medicine?
If I were you I would go get tested for STD's. Usually rashes of bumps are associated with herpes. Go get tested. Most STD's are curable.