Patients with tuberculosis is best not to eat salted duck eggs, Chinese medicine believes that tuberculosis belongs to consumption, the pathogenesis of Qi and Yin deficiency, prone to dry cough, less phlegm, hot flashes, night sweats, and even blood in the sputum, the body wasting and other symptoms. The salted duck egg itself is salty, and Chinese medicine believes that salty enters the kidney, which easily hurts the kidney yin, while the lung and kidney belong to the relationship between gold and water, both of which are related to yin deficiency and dryness. Eating salted duck eggs easily leads to dry mouth and excessive water loss in the respiratory tract, which aggravates the dry cough and little phlegm of pulmonary tuberculosis and even induces blood in the sputum. Patients with pulmonary tuberculosis should be stewed and tonic, moisten the lungs to stop cough and resolve phlegm food and medicine, including pears, lotus root, yam, radish, etc., not suitable for eating salty and cold products, so as not to induce dryness of the respiratory tract, frequent dry cough, leading to the occurrence of many complications.