Strengthening prenatal and postnatal hygiene promotion, guiding mothers to protect their nipples, and helping nursing women master normal breastfeeding methods are effective measures to prevent acute mastitis during lactation. 1, pregnancy breast hygiene the last 2 months of pregnancy, often with soapy water or water scrub nipples; or use 70% alcohol (or soju) cotton balls to rub nipples, areola, to strengthen the nipple resistance because alcohol can remove oil, long-term use of the areola gland, sebum secretion reduction caused by dry nipples, resulting in cracking so can not be used for a long time. 2, correct nipple depression in the middle of pregnancy to try to correct nipple depression. The nipple can be covered with a small wine goblet and fixed with a cloth belt. Or use a breast suction device to attract, 1 to 2 times / day. It is also possible to massage the breast, or pull it by hand frequently. 3, correct breastfeeding Each time you breastfeed, you should take turns to feed both breasts, and constantly change the position of holding the baby, so that the milk ducts are fully sucked empty. 4.Keep the milk discharge smoothly The accumulation of milk is an important factor in the development of the disease, so you should breastfeed regularly and drain the remaining milk after breastfeeding. You can use a breast pump or massage the milk out by hand to make it empty. In order to prevent the thickening of milk, the occurrence of curdled milk blocking the milk ducts, to encourage nursing women to drink soup diet several times. 5, timely treatment of cracked nipples cracked nipples, which can cause pain, affecting breastfeeding, can be used sesame oil or honey blended coated with the affected area, with a breast pump to suck out the breast milk feeding infants. 6, strengthen the infant oral care Pay attention to the cleanliness of the infant’s mouth, can use water to gently wipe the infant oral mucosa and dental age 1 to 2 times a day; do not let the infant sleep with milk. 7, weaning indications If the patient has high fever or abscess formation, breastfeeding should be stopped for one or both sides of the weaning to prevent the impact of infected milk on the baby before weaning can be used raw hawthorn 30g, raw malt 120g decoction for tea; do not force up the milk back to the breast. Acute suppurative mastitis self-examination From sitting position. Any nipple inversion, skin depression, and structural shape abnormalities are clues to cancer deep in the breast. These signs can occur if the patient claps her hands over her head to contract her pectoral muscles. When the woman is in the sitting position, it is easier to examine the supraclavicular, infraclavicular, and axillary lymph nodes, and finally to perform palpation while sitting, using joined fingers to touch the area under the nipple. In the supine position, a pillow is placed under the ipsilateral breast and the ipsilateral hand is raised above the head so that the breast is evenly spread on the chest wall, making it easy for the fingers to reach the deeper part of the breast cancer. Palpation should be performed in a circular fashion, turning laterally from the nipple outward, and it is especially important to examine the breast that extends into the armpit. The breast examination should first observe the development of the breast, whether both breasts are symmetrical, whether the size is similar, whether both nipples are at the same level, whether there is retraction of the nipple depression; whether there is erosion of the nipple and areola, what is the color of the breast skin, whether there is edema and orange peel-like changes, whether there is inflammatory manifestations such as redness and swelling, and whether there is anger in the superficial veins of the breast area. If there is septic manifestation, please go to the hospital in time to avoid delaying the disease.