The patient has a burning sensation two months after the fracture, for the following reasons: 1. More intense functional exercise after the fracture: the local area will be red and swollen, mainly due to excessive functional exercise, causing local soft tissue irritation and injury. 2. Local dermatitis: sometimes the fracture is fixed for too long, due to the poor permeability of the plaster or support used, and accompanied by local sweating and local wound moisture, often appear at the fracture site eczema. This time there will be local skin redness, heat, and also accompanied by obvious itching of the skin. It is necessary to remove the external fixation in the hospital for observation and timely treatment with symptomatic medication.