Ephedra in Ephedra-Huang Zi Zi Xiao Xin Tang has the effect of sweating, sweating is a normal phenomenon, if excessive sweating is accompanied by rapid heartbeat, vomiting and other symptoms, the drug should be stopped immediately and go to the hospital for medical treatment. In the formula of Ephedra, Ephedra, Psoralea, and Hyoscyamus, Ephedra sweats to relieve epidemics and promote the lungs to calm asthma; Hyoscyamus relieves epidemics and disperses cold (removes the cold from the surface of the muscles), warms the lungs and resolves fluid (promotes the operation of the stagnant fluid by warming the lungs); and Psoralea replenishes the fire to help the yang and disperses the cold to relieve pain. All the medicines in the formula work together to help Yang to relieve the effect of the surface, the formula is mainly used for treating wind-cold cold with fever, no sweating, fear of cold, coughing and wheezing with cold lungs, sudden hoarseness, even speechlessness, or pain in the throat. This formula of ephedra, ephedra, fine Xin have a certain degree of toxicity, poisoning may have a headache, irritability, vomiting, profuse sweating, thirst, fever, flushing and other manifestations, at this time should be timely medical solution. Therefore, the proportion of the three dosages must be cautious, and the decoction should be first decocted ephedra and epiphyllum, float away the foam, and then continue to decoct. This formula is contraindicated in patients with severe coldness in the hands and feet due to Kidney-Yang deficiency and weakened Kidney-Yang, in patients with undigested food discharged from the bowels, and in patients suffering from internal coldness (symptoms of cold pain in the lower back and knees, cold limbs, diarrhea, dysmenorrhea, etc.). Please use this formula under the supervision of a physician. If there is any discomfort, please consult a doctor promptly.