How do you stretch your foreskin without creams?

One good way is to get user a hot shower or in a bath and work on it. the hot water makes the skin easier to stretch and manipulate. you can actually do it with nothing at all but it will take a bit longer. Just remember to stop short of hurting yourself. The first part of the foreskin to start with should be the bit that closes up around the head. just try to grab a hold of it and stretch it until you can get a finger under it then work your way up to two fingers. you will find that it will get easier and easier.