The general 72 hours after the broken foot can spray Yunnan Baiyao. Within 72 hours after breaking the foot, the local soft tissue injury, mainly manifested as local blood seepage, edema, severe pain, at this time the blood has not yet coagulated, and the main role of Yunnan Baiyao is to activate blood circulation and remove blood stasis, at this time, if you use Yunnan Baiyao, it will aggravate the bleeding, which will result in aggravation of swelling. After 72 hours, the bleeding basically stops, the formation of subcutaneous silt, at this time the application of Yunnan Baiyao, can accelerate blood circulation and absorption of silt. If after breaking the foot, the local swelling is serious or there is a tendency to fracture, although Yunnan Baiyao has the effect of activating blood circulation and removing blood stasis, a single Chinese medicine can not be used as a treatment plan, and it is recommended that the patient under the guidance of a doctor for formal treatment.