How long it takes to heal from mastitis during breastfeeding depends on the severity of the condition and needs to be analyzed on a case-by-case basis. Inflammation of the mammary glands is mostly caused by milk stagnation and bacterial infection. If the symptoms of early mastitis are mild, you can use a breast pump to suck the milk from the affected side, and then take anti-inflammatory treatment, and the symptoms will usually disappear in about a week. However, if the symptoms are more severe, forming an acute breast abscess with chills and fever, surgical incision and drainage should be performed as soon as possible; at the same time, pus bacterial culture and drug sensitivity tests should be performed, and sensitive antibiotics should be applied for treatment. The treatment time is relatively long, with the duration of the disease lasting about 1-2 months. In addition, patients with mastitis should develop good hygiene habits along with active treatment, keep the nipples clean, change clothes and bathe regularly, paying particular attention to the cleaning of the nipples. Regularly empty the milk from the milk ducts and use your hands to massage with pressure along the ducts to prevent milk stagnation.