mastitis?

Am
I had a 102 fever yesterday, a terrible headache, bodyaches and one of my boobs had a few hard spots that I was not able to nurse away. My fever went away today but my head still hurts and my boob still have hard spots that are tender to the touch. My boob doesn't have any red spots. Does mastitis go away on its own? Any tips getting rid of the clogged ducts.