2, the intestinal waste gas is usually absorbed by the blood, so the problem should be taken seriously.
3, first of all, you should improve the absorption function of the stomach and intestines, change the bad eating habits, but also can not intake too much animal protein, you can also eat more sweet potatoes, rich in lactic acid bacteria food, which helps digestion.
4, you can also do abdominal massage, can also improve and relieve the problem of stomach ringing.