i cought yeast infection from my girlfriend. i got the cream for the infection i just wanna know should i put it on with my foreskin over the glans or keep it exposed?
You should cover all surfaces with it as far as possible, otherwise the yeast will continue to lurk where you missed. In particular you need to get it under the foreskin, so put the cream on with the foreskin retracted, then move it back and put more on. (Or put it on erect.)