Fumigate the herbal infusion, one packet per day. First, soak a packet of herbs in cold water for half an hour to an hour, decoct it and then decoct it for about 15 minutes on low heat, and pour out the decocted juice. Put cold water in the herbal medicine again, decoct it and then decoct it for another 15 minutes on low heat. Pour the juice out again. The first decoction of herbs is thicker, so it is best to keep a separate small bowl for another use. One packet of herbs can be decocted 3 times. Pour the decocted juice together and leave it there until the baby wants to use it and then pour a little out and heat it up to soak the baby’s bottom. The temperature of the soaking water is about 40 degrees, so that the baby does not feel hot, hot, the next baby will not soak, cold, no effect. Each soak is about 5~10 minutes. Baby poop once, soak once. Some babies have less stools, maybe only 1~2 times a day or once every 1-2 days, in this case, the herbal fumigation soak 3 times a day. If your baby has more than 3 bowel movements a day, then the herbal fumigation soak can be done as long as 3 times a day. After your baby has a bowel movement, wash it with water and then apply erythromycin ointment or ichthyolite ointment. The actual fact is that you will need to put a little more water in the decoction to ensure that the baby is fumigated and soaked for a day, just enough. After the fumigation and soaking, dry the buttocks, then soak the first decoction of Chinese medicine with gauze or cotton, and then put the cotton or gauze on the anus or clip it on the anus for about half an hour to an hour. Then rub erythromycin ointment or ichthyolite ointment externally. Usually try to keep the small buttocks as dry as possible, which is more conducive to the recovery of perianal abscess. If the conditions allow, you can sunbathe your little bottom on the balcony for about half an hour, and then apply other drugs externally.