For the past few months I have been suffering from dry skin on the penis head and foreskin, this only ever occurs when erect and masturbating. The longer I masturbate the worse it gets. When erect and masturbating the penis glans is hard but as soon as I stop touching the penis the head goes soft and the skin becomes wrinkly. I also am suffering from a tight frenulum so don’t know if this is causing any of the other things. Please help this is getting me really down and depressed..