Dr. I have a problem in my sexual life which is I think premature ejaculation, because in the time of doing sex I alwayz be over excited and as a result cant control to erect.in the time of intercourse it erect before 1 minute or some time it erect at the time of foreplay.that's the reason I cant satisfied my girlfriend.although she alwayz help me to control over it.but I need to solve this problem.. kindly please help me to solve this problem.