Smelly farts may be caused by dietary structure, indigestion, constipation, etc. According to the reasons, you can improve the dietary structure, take drugs such as oral domperidone to promote gastrointestinal peristalsis, and take drugs such as oral lactulose to improve constipation. 1. Dietary structure problem: If you eat too much greasy food, or eat more beans, potatoes, sweet potatoes and other foods that are easy to flatulence, it will lead to excessive intestinal gas, mixed with ammonia will release smelly farts. You can improve the diet structure, light diet, avoid spicy, greasy and cold food, eat more fresh fruits and vegetables, avoid excessive intake of meat, beans and high protein food to relieve. 2. Indigestion: When the gastrointestinal function is poor, it is easy to have indigestion after eating, so that the bacterial flora in the gastrointestinal tract is out of order, resulting in the production of a large amount of hydrogen sulfide and other gases to appear farting is very smelly. You can take domperidone orally to promote gastrointestinal motility or take probiotics to regulate intestinal flora. 3. Constipation: If there is constipation, the stool in the intestinal tract for a long time, it will be fermented to produce ammonia, which will also form a very smelly fart. Lactulose, polyethylene glycol and other drugs can be taken orally for laxative treatment. All of the above drugs should not be applied by yourself, but under the guidance of a doctor. If the smelly farts continue to be unrelieved, it is recommended to go to the hospital to find out the cause of the problem and treat it under the guidance of a doctor.