A boil appeared on my right breast and it is paining too. It's there for past 3 days and surrounding the boil, the skin has become red. I?

See your doc. Please see your doc; while small boils can sometimes drain on their own, many needed to be drained in the clinic. Also you might need antibiotics to help with the skin infection. Please see your doc soon, especially if you're having fever, chills or muscle aches.