How is a breast surgery performed to drain ducts in a case of mastitis?

Periductal Mastitis: Periductal mastitis is a chronic infection of the nipple ducts that often requires excision of the affected duct and secondary healing. This is associated w/smoking; in my experience, the outcome is poor w/o quitting. This is very different from mastitis associated with breast feeding, which does not require surgical treatment (responsive to antibiotics).