Pig's trotters are rich in high protein and high in calories, which is very suitable for lactating mothers. Clean fresh pig's trotters 1 only, scrape their fur, put them in a casserole with 3g of medulla tetrapanacis, and add1.5kg of water to make soup. First use a strong fire, then turn the water to a slow fire, and cook for 1 to 2 hours. Drink it twice a day for 3 to 5 days.