Hi I have a small crack on the "neck" of my pennis, right below the head. It happen from masturbating due to lack of sex with my wife while she was sick for over 2 weeks. I put vaseline and it went away, but as soon as I mastubated again, the crack opened up again! What should I do? I am sure stop masturbating is #1, but is this normal? Is there any special type of cream?