Recently i noticed few (4 or 5) small rash marks on my penis head. These were minute in size. They are not painful, nor do i have any discharge from them. Not only this but my foreskin was also irritated for a few days and appeared reddish. I also experienced a burning sensation in my testicles although this only lasted two days. What i would like to know is what could have possibly caused the problem. I havent had any sexual relations for over 8-9 months and live a clean and healthy lifestyle anyhow. I have read various articles claiming things such as nylon underwear, stress, delayed sexual infection and other things can cause outbreaks such as this. Could anyone else advise me on this? I am planning to go to a clinic to rule out STI's however in the meantime i would appreciate some advice.