I have a group of tiny pin head sized pimples on the shaft of my penis . It is the second time it has happened . I went to a doctor and he said it was nothing to worry that was the first time .now it is the second time I am kind of worried . I used a body cream and I worry if this caused it or the second reaseon I work in a very dirty environment and I have contacted something from the public toliets or porta johns . They seem to heal this tme very quickly