A cough with blood from a cold is a more serious symptom. The first consideration is that it is caused by more serious tonsillitis and pharyngitis, and such patients need to be treated with anti-infective and hemostatic drugs under the guidance of a doctor. However, there are many symptoms that can cause a cough with blood, such as lung diseases and bronchial diseases. Therefore, if you have a cough with blood during a cold, you need to go to a local hospital and undergo a comprehensive examination, such as chest CT and blood tests, in order to confirm what disease is causing the cough with blood, and then take medication for treatment under the guidance of a doctor. At the same time, eat more vitamin-rich foods and fruits, which can improve the body’s resistance and promote the recovery of the disease.