try Bengay the first is so warm but sure it wil be fine
Vaseline is safe, but you might prefer baby oil.
NEVER use soap! this can lead to a serious infection and in some cases even gangrene infection in some cases.
I used Vaseline for a long time when masturbating and eventually developed a growth on the side of my glans. An area of raised skin .75 x .25 inches that was render to the touch and had to be removed surgically.
it's good for the skin like dry lips or cracked lips and sh*t