Cold and cough with blood in the sputum, may be upper respiratory tract infection caused by severe coughing, resulting in mucosal damage, you should drink more water, the use of medication (such as ammonium chloride, etc.), to avoid smoking, alcohol and so on. 1. Drink more water: it is good for lubricating the throat, avoiding bleeding symptoms caused by mucous membrane damage due to dry throat. 2. Use medication to treat the cough and phlegm, such as aminobromine hydrochloride and ammonium chloride. 3. Avoid smoking and drinking: because smoking and drinking will stimulate the throat, causing further aggravation of coughing, damage to the mucous membrane of the pharynx and bleeding, so you should quit smoking and drinking. Cold and cough with blood in the sputum can also be seen in a variety of reasons, it is recommended to timely medical examination, a clear diagnosis and strictly in accordance with the doctor’s instructions for the use of medication.