Ephedra is warm, and pungent, bitter, to the lung, bladder meridian, efficacy and effects are as follows: 1, can open the coup, penetrate the pores, dispersing wind and cold, clinically used for external wind and cold, pain, cold, no sweat, fever, headache; 2, promote the lung and calm asthma, can promote the lung Qi, warm the lung cold, so it can be used for wind and cold cold, wind and cold cough or asthma, etc.; 3, the effect of water, swelling, the lung is the water The lung is the source of water, so the lung qi, through the water channel, down the bladder, diuretic effect; 4, ephedra is light up, no gas, no taste, is the lightest of the smell, so it can penetrate beyond the skin pores, but also deep into the blood clotting, where the power of the medicine can not reach, ephedra are able to penetrate all the pores. Therefore, it is stronger and more powerful, so it can be widely used to treat wind-cold damp paralysis of the skin, as well as carbuncles, swelling and pain, injury to blood stasis, etc.; 5, ephedra also has side effects, such as hypertension, bleeding patients should not be used, or under the guidance of a doctor.