The patient, Gan, male, 72 years old, was admitted to the hospital with “more than half a year after radiotherapy for esophageal cancer”. The patient was admitted to the hospital in August 2014 with no obvious triggers for choking on food, which was obvious with dry food, and the choking on food gradually worsened, and a barium esophageal swallow on October 10, 2014 showed a narrowing of the lower esophagus with a length of about 75 px. Gastroscopic biopsy was performed in the hospital on October 11, 2014, which showed the pathology of esophageal middle- and low-differentiated squamous cell carcinoma. Chest CT showed enlarged lymph nodes in the upper mediastinum, and metastasis was considered. Radical radiotherapy for esophageal cancer, IMRT technique, DT: 60Gy/30 times, choking on food improved after radiotherapy. At present, the patient’s spirit is OK, smooth semi-liquid diet, light mouth, tasteless, like warmth and pressing, more mouth salivation, poor diet, sleep peacefully, two stools are normal. Body fat, tongue light red, thin slippery moss, pulse string slippery. Diagnosis: The patient is older, with weak spleen and stomach functions, plus more injury to fluid and gas depletion after radiotherapy. Insufficient yang in the middle, cold is born from it, and the spleen qi is weak and cold, unable to take in the fluid, and the fluid overflows in the mouth due to salivation. Therefore, the mouth salivation is more, the mouth is pale and tasteless, preferring warmth and pressing, the tongue is light red, the moss is thin and slippery, and the pulse is stringy and slippery. The diagnosis is deficiency cold in the spleen and stomach. Prescription: Spleen and stomach deficiency and cold. The treatment is to warm the middle and dispel the cold, benefit the qi and strengthen the spleen to regulate salivation. Give Lizhong Pill as the main formula with additional subtraction: dry ginger 9g Codonopsis pilosulae 18g Rhizoma Atractylodis Macrocephalae 15g Scorched licorice 9g Jinchuazu Zizi 15g Fried malt 15g Jianqu 15g Poria Cocos 15g The patient’s salivation improved significantly after taking 7 doses of this formula. After the removal of Jinchuuzi, the patient consolidated the treatment for 7 doses. According to the “Treatise on Typhoid Fever”, after the yin and yang are easy to be different, the old recurrence of the disease is recognized and treated: “After the big disease is different, like to salivate, for a long time, there is a cold on the chest, when warmed up with pills, it is appropriate to treat the middle pill.” Therefore, Lizhong Pill is used as the main formula for addition and subtraction. The formula takes dry ginger as the ruler, warming the spleen and Yang, dispelling cold. Dangshen is the subject, strengthens the spleen and benefits the qi, matching the subject with the ruler, warming the middle and strengthening the spleen. Dampness in the spleen and stomach is easy to produce dampness and turbidity, so Bai Zhu is used to strengthen the spleen and dry dampness with sweetness, warmth, bitterness and dryness, and Poria strengthens the spleen and induces dampness as the adjuvant. Salivation from the mouth to flow, with golden cherry to strengthen the spleen and fix the saliva; poor diet, with fried malt, Jianqu to strengthen the stomach and eliminate food as adjuvant. To roasted licorice as a make, the meaning is two: one for and party ginseng, atractylodes macrocephala to strengthen the spleen and benefit qi; two for the harmonization of all drugs, is the adjuvant and the use of both medicines. Therefore, it can receive better therapeutic effect. Saliva in the clinic should be carefully identified with saliva. Saliva for the mouth, that is, saliva in the thinner part of the spleen essence, spleen qi generated and transmission and dissemination, so that “the spleen in the liquid for saliva”. With the protection of oral mucosa, moisturize the oral cavity, from the cheeks, can flow from the corner of the mouth. Saliva is a thicker part of saliva, more out of the tongue, moisturize the oral cavity, moisturize food and nourish the kidney essence function, more saliva from the mouth. Therefore, the clinical treatment of salivation from the corners of the mouth from the spleen, saliva more often from the kidney treatment.