Well first you want to pop it. Otherwise known as lancing. When my brother had boils, my mother who is a nurse used a razor blade to cut open the top. Then you squize it very hard like the most...
Boils can be very painful. I have had a few in my life time. I always heat a small wet towel in the microwave but do not let the towel get to hot. You don't want to burn yourself. Apply the warm...