In the case of acute mastitis during lactation, mannitol can be applied to the affected area, which will gradually improve in about 1 week. If local abscesses have already appeared, the use of mannitol is not recommended, as it may lead to aggravation of the condition, but is usually more effective for patients with mild cases. It is a bitter and cold herbal medicine that has the effect of softening the hardness and diarrhea, breaking the blood and clearing the dampness, and has fewer side effects. When applied externally to the breasts, the mangosteen can be boiled into a soup and then the towel can be soaked and applied hot to the breasts, but the heat needs to be tolerable, which can have an auxiliary therapeutic effect on mastitis and breast swelling. Patients with acute mastitis need to pay attention to rest, suspend breastfeeding, use physical methods to promote the discharge of milk, and if a local abscess forms, hospitalization is required for surgical treatment.