Cold flush generally refers to Cold and Heat Clearing Granules, which has the effect of dispersing wind and clearing heat. Cold & Flu Clearing Heat Granules is a kind of antidepressant Chinese patent medicine, which is composed of Thornybush, Fenghuang, Chaihu, Pueraria Mirifica and other medicines, with the effect of dispersing wind and dispersing cold, solving the symptoms of cold and clearing heat. The drug can be used clinically to treat headache, fever, malignant cold (fear of cold), runny nose, dry and swollen throat caused by wind-cold flu. The adverse reactions and contraindications of Cold and Flu Clearing Heat Granules are not clear. In the process of medication, it is not suitable to use tonic Chinese medicine, and should avoid smoking, alcohol and spicy, cold and greasy food. If the patient’s body temperature exceeds 38.5℃, the drug should be stopped and the patient should go to the hospital. If patients need to use this medicine, they should be under the guidance of a doctor and should not use the medicine without authorization to ensure the safety of the medicine.