Hi there. I'm a 30 y/o female, who, over the course of a month has noticed a pimple-like bump show up on my head. It's the size of maybe a B.B. and starts out painful. As I continue to mess with it, I know, bad thing to do, it eventually crusts up and go away, only to return in the same spot a couple of days later. From what I can see by looking at it, it's either a pink or a fleshy color. Not red, that I've seen. I've got an appt with the doctor on the 5th for something unrelated, but I thought I'd mention this to him. Think it'll be ok to wait another couple of weeks? I'm concerned about skin cancer. What do y'all think?