Spitting up green liquid can be dealt with by taking oral medication, adjusting diet structure and changing living habits. The green liquid spit up is actually bile, which is initially synthesized and secreted in the liver and eventually stored in the gallbladder, which contracts when stimulated by food and discharges the bile into the duodenum to participate in digestion and absorption of food. In general, bile enters the small intestine along the duodenum and does not return to the stomach through the pylorus, but in pathological conditions bile can reach the stomach retrograde and is vomited out through the vomiting reflex, forming a green liquid. You can take oral acid suppressants such as rabeprazole, plus gastric mucosal protective agents such as colloidal bismuth, plus gastric motility drugs such as mosapride for comprehensive treatment. In addition, you should pay attention to avoid overeating, avoid drinking alcohol, avoid eating too much greasy food, and usually it is better to keep a certain angle when sleeping, not to sleep flat, to reduce the vomiting of green liquid.