Last night i was playing around pulling the skin and i may have caused a trauma of some sort, afterwards i felt dcomfort and a bit itchy. when I looked i had a big red lump size of a dime. It was raised. I got scared and put a bit of cream on and went to sleep. In the mornig it was gone... i do feel a minor bit of itch but theres nothing there... i was left very confused, i this something to worry? about??