Removal of bad taste in the mouth can eradicate H. pylori, which can be treated with Niuhuang Shangqing tablets, and attention should also be paid to maintaining oral hygiene. Some people have bad taste in the mouth is caused by H. pylori infection, so you need to eradicate for H. pylori, you can use antibiotics to kill H. pylori, you should also combine acid suppression, bismuth, increase the therapeutic effect of drugs to protect the gastric mucosa. Some people with bad taste in their mouths are caused by strong stomach fire, which can be treated with Niuhuang Shangqing Tablets, which can clear heat and fire and relieve symptoms such as sores in the mouth and tongue, swollen and sore gums, and bad breath. Bad breath is not only related to stomach diseases, but also has a direct relationship with the mouth, so people with bad breath should also maintain oral hygiene in general. For oral diseases, timely treatment is needed to reduce the odor in the mouth.