If the bad breath is caused by dampness and heat in the stomach and intestines, you can take Qing Zhong Tang, the effect of which is to clear heat and dampness, regulate qi and harmonize the middle. The formula of Huang Lian two money, fried gardenia two money, Chen Pi one and a half money, Poria one and a half money, half of the summer one money, ginger soup soak seven times, grass cardamom seeds crushed seven points, roasted licorice is seven points, the formula of Huang Lian, gardenia to clear heat and damp, half of the summer, Poria, cardamom to strengthen the spleen and dispel damp, Chen Pi, licorice to regulate qi and stomach. Heat injury constipation can add silver flower, dandelion, heliotrope. For Qi stagnation and abdominal distension, thick park and large abdominal bark can be added. If you are suffering from cold and heat, you can add and reduce the amount of Han Xia Di Xuan Tang, and pay attention to a light diet, avoid spicy, stimulating and greasy food, keep your mood relaxed and do not stay up late.