Generally speaking, the causes of high fever and very smelly abdominal gas in children include the following aspects. The first is caused by children suffering from enteritis, after children suffer from enteritis, especially anaerobic bacteria caused by enteritis, will often cause fever and abdominal exhaust very smelly, you can promptly do stool routine and stool culture, and according to the results of the stool culture drug sensitivity test to target the choice of antibacterial drugs. The second is due to children suffering from upper respiratory tract infection combined with indigestion caused by symptoms, if children suffer from tonsillitis and other upper respiratory tract infection and indigestion, this time will also appear high fever and abdominal exhaust odor. It is necessary to promptly apply Pu Di Lan anti-inflammatory oral liquid to treat tonsillitis and apply Bao He Wan to eliminate food and stagnation.