When you quit breastfeeding, you first need to stop breastfeeding, not empty your breasts, and eat less soup and greasy food. More than half of the women will feel breast swelling and pain. In this case, you need to wear a suitable bra, avoid squeezing and move less. If the swelling and pain are obvious, you can take oral medication for pain relief. You can give 60g-90g of raw malt, decocted in water as tea, and take one dose daily for 3-5 days. Vitamin B6 200mg should be taken orally 3 times a day for 5-7 days. Avoid carrying heavy things during this period. If there is redness, swelling and pain, and hard lumps when touched, active antibiotic treatment is needed, penicillin 9.6 million units is infused once a day for 5-7 days.