Cold expelling and pain easing powder and using method thereof

The invention relates to the technical field of traditional Chinese medicine, in particular to cold expelling and pain easing powder and a using method thereof. The cold expelling and pain easing powder is prepared from, by weight, 10-25 parts of radix aconite, 10-25 parts of radix aconiti agrestis, 5-10 parts of semen brassicae, 20-30 parts of bark of daphne giraldii and 20-30 parts of nettle roots. In the formula, bark of daphne giraldii is large in quantity and higher in effects of dispelling wind, eliminating dampness and easing pain and serves as a monarch drug; radix aconite and radix aconiti agrestis warm the channels and expelling cold, have the light anesthesia and pain easing effects and serve as ministerial drugs; nettle roots have the effects of promoting blood circulation to remove blood stasis and dredging the channels and serve as an adjuvant drug; bark of daphne giraldii and radix aconiti agrestis generate the stimulation effect on the skin due to anesthesia, but semen brassicae is acrid in fl