Soaking the boil in very warm water or applying hot compresses with a clean cloth for 15-20 minutes at least 2-3 times a day.
This should bring the boil to a head or cause it to rupture
on its own. Sometimes boils need to be lanced since there is a lot of pain involved. Ibuprofen
can help. But you may need a provider to look at it since you may require antibiotics, if severely infected.