Winter weather is relatively cold, suitable for drinking tea substitute with the effect of detoxification of cold (remove cold from the surface of the muscle), you can usually choose ginger, perilla, cinnamon sticks brewed tea to drink. However, it should be noted that the active ingredients of the water is limited, generally difficult to achieve the therapeutic effect. 1. Ginger has the efficacy of relieving cold, resolving phlegm and relieving cough. It is often used in the treatment of wind-cold cold, cold pain in the stomach and epigastric region, poor appetite, vomiting and other symptoms. It is not suitable for people with heatiness and internal heatiness, and its adverse effects have not been clarified. 2. Perilla has the effects of relieving exterior cold, moving qi and harmonizing the stomach (regulating the stomach and internal organs by promoting the operation of qi). It is often used in the treatment of wind-cold flu, chest and epigastric distension, nausea and vomiting. Adverse reactions and contraindications have not been clarified. 3. Gui Zhi has the effects of sweating and relieving the muscles (relieving evil qi from the skin surface) and warming the meridians. It can treat cold pain in the epigastrium (feeling cold pain in the stomach and abdomen), wind-cold flu, menstrual cramps and dysmenorrhea. It is not suitable for people with yin deficiency and fire exuberance (deficiency of yin essence in the body and hyperactivity of deficiency fire), people with blood heat and pregnant women, and the adverse effects have not been clarified. Generation of tea drink efficacy is limited, can not replace the drug treatment, if the body is not feeling well, it is recommended to go to the hospital in a timely manner, so as not to delay the condition.