I have a very small hole on my left boob right on top, and when I squeeze it white hard smelly stuff comes out. What could this be? I am going to go see my doctor on Monday.

It could be a spider bite.

Also an ingrown hair.

As well as a hundred other different things. I am afraid you're going ot have to wait to see your doctor on Monday.

There are way too many possibilities. Wait to see your doctor.