Hi, I am 25 and I noticed a few months back that I had a small little non painful bump under my left armpit. Last night i noticed that the bump was gone and there was a hole instead. The hole was filled with deoderant and it was deep. My husband cleaned it out and I squeezed the hole and a bunch of deoderant came out. We got it all out and cleaned it up. Should i go to the doctor or is this common?