The authors use needling Hegu (LI 4) through to Houxi(SI 3) and the Ashi points to treat acute lumbar sprain. When needling Ashi point

it applies three methods which are "Trigger puncture"

"Hegu-needling" and resistance needling method. It achieved satisfactory curative effect and the total effective rate is 100 %. Hegu(LI 4) and Houxi(SI 3) are both related to Du Channel and Gall-land of Taiyang of foot. So needling these points can dredge vital energy and blood of stagnation in the local area.