Most respiratory diseases have coughing and sputum symptoms. Sputum can be grayish-white mucus sputum or yellowish-green pus sputum, and sometimes coughing up sputum with bright red blood is called hemoptysis. The medical term for bleeding from the trachea, bronchus or lung tissue below the larynx that is expelled from the body by coughing is hemoptysis. What should patients with hemoptysis not eat? 1. Avoid cold food and do not eat cold drinks or frozen drinks when coughing. If the diet is too cold when coughing, it is easy to cause occlusion of the lungs, aggravate the symptoms, and not heal over time. 2. Avoid fatty, sweet and thick foods. Chinese medicine believes that coughs are mostly caused by lung heat, especially in children. In the daily diet, eating fatty and sweet foods can produce internal heat and aggravate the cough, and the phlegm is sticky and not easy to cough up. 3. Avoid fish, fishy shrimp and crab. People generally know that coughs need to avoid “hairy things” and should not eat fish, which has the greatest impact on “wind-heat coughs”. 4, avoid sweet and sour food, acid food often converge phlegm, so that phlegm is not easy to cough up, thus aggravating the disease, making it difficult to heal the cough. 5, avoid eating oranges, orange flesh produces heat and phlegm. 6, avoid eating peanuts, melon seeds, chocolate, etc., the above foods contain more oil, easy to breed phlegm after eating, making the cough worse. 7, avoid eating tonic. Many parents give their physically weak children some tonic, but the child should stop taking tonic when the cough is not healed, so as not to make the cough difficult to heal.