Hi,
The above mentioned cream should work, however the foreskin is different than the resto of your skin. The foreskin exists of an inner and outer layer.
They used to sell a Nupercainel cream not the one used for hemerhoids but it was an anesthectic cream. You should use something with antibiotics in it as the little cracks in the skin could result in scar tisue.
They also have 5% Xylocaine jelly wich moisterizes but also helps with pain from the little cracks.
I hope that something will work for you.
God bless,
Ron
Normally skin starts to dry out as we get older. It's not a symptom of any illness or disease. Your foreskin is no different, it's just skin. There are a few steroidal creams that can be prescribed that will help. Ask you doctor.