What causes belching?

If you show abdominal distension, belch is considered gastroenteritis, and show gastrointestinal flora imbalance, gastrointestinal flatulence, to go to the hospital to find out the specific cause, try to prevent eating raw and cold food, can not let the abdomen catch cold, can use clove appetizer paste or use Simotang oral liquid for treatment. And if you show spleen and stomach weakness, and accompanied by spleen deficiency intestinal cold, you can use Fuzi Li Zhong Wan, but also can carry out Chinese medicine conditioning;