If your baby does not poop for a few days and farts very smelly, you can help your baby to defecate by improving feeding habits, helping your baby to improve his/her bowel habits, and using medication. The baby does not poop for a few days, but accompanied by farting, which shows that the baby does not have intestinal obstruction and other conditions, it is a better situation, farting is very smelly may be due to the intestinal flora of the intestinal feces decomposition in the intestinal tract. Therefore, the ways to deal with it are as follows: 1. Improve the baby’s diet, let the baby drink more water, and increase the intake of vegetables, fruits and other foods rich in dietary fiber in the diet. 2. If the baby holds back from defecation because of the pain of defecation, it will further aggravate the constipation of the baby, therefore, medicines such as Keserol can be used to help the baby defecate and alleviate the symptoms of pain of defecation, and probiotic agents such as Bifidobacterium can also be used to help the baby alleviate constipation 3. You should help your baby develop the habit of having regular bowel movements. All of the above medications should be used under the guidance of a doctor to avoid self-medication.