ANDY'S ANSWER: It is a common complaint of some uncircumcised guys that the head of their penis can be painfully sensitive. The best thing that can be done to de-sensitize it is to gently pull the foreskin back several times during the day and just let the glan get used to being exposed. He should also do this in the shower to while he is cleaning his penis. Most guys report it only takes about a week for a noticeable improvement to their sensitivity.