Most 2.5 year old's are not retractable at all so only encourage him to do that if he can do it himself comfortably, no one should ever pull it back for him as they can't tell when it will hurt. Urine is sterile and the foreskin is a self cleaning organ just like the eyes normally are. Pulling it out a little might help. Some boys foreskin, especially if long gets kind of stuck together so pulling it down a little can 'unstick' it.
10/1/13 at 8:11pm