Worrying about your health can be quite upsetting. I can understand your concern. However, I think that is can probably wait until Wednesday. I would prefer a dermatologist look at something like that over just a regular doctor, but that's just me. I'm sure whatever you decide it will turn out okay, at least I hope so. My dad got a cancer spot on his ear and everything turned out fine. He had is removed and there was no re-occurrence. I had a lesion on my ear and it turned out to be nothing to worry about, so try not to worry too much.