There are no side effects when applying external application of mannitol, which has the function of clearing heat and diarrhea, moistening dryness and softening hardness, clearing fire and reducing swelling. When breast swelling and pain are unbearable, putting mangosteen in a cloth bag and applying it to the breast can significantly reduce the feeling of swelling and prevent mastitis caused by milk stagnation, which has the effect of returning milk. It is recommended that women gradually return milk, not suddenly, and gradually reduce the number of feedings to reduce the amount of milk lactation to reduce milk distension, and increase the effect of returning milk by drinking fried malt as tea or taking vitamin B6 orally. Women should control their diet, drink less soup and avoid high protein and high fat food.