Soda water to relieve stomach acid has a certain role, but the role is limited, can not replace the drug treatment of excessive stomach acid. Soda belongs to the weak alkaline water, pH value is about 8, stomach acid is hydrochloric acid pH value close to 1 ~ 2, soda contains sodium bicarbonate can relieve stomach acid has a certain effect, but the effect is very limited, can not replace the medication treatment of hyperacidity. Gastric acid may be caused by chronic gastritis, peptic ulcer, etc., can follow the doctor’s instructions for the application of acid inhibitors, such as omeprazole, rabeprazole, esomeprazole enteric-coated tablets, etc., and the joint application of gastric mucous membrane protection agents, such as aluminum phosphate gel, bismuth potassium citrate and other drugs to promote gastric mucosal repair, relieve gastric hyperacidity. It is recommended that one should consult a doctor and take medication as prescribed by the doctor in order to finally solve the problem of gastric acid.