Lateral ligament strain of ankle joint, which is what we usually call ankle sprain; Ligament is the tissue that connects two bones. There will be swelling and congestion at the site of ligament strain. Ligament strain is a kind of ligament strain, partial fracture or complete fracture around the joint, which is called joint ligament sprain because the joint activity exceeds the normal physiological range due to external force.

After spraining the joint ligament, local swelling, pain, tenderness and subcutaneous bleeding can be seen in the blue area. It is very important to deal with joint ligament sprain correctly in the early stage. Because ligament tissue is not easy to regenerate and recover, if it turns into a chronic disease due to improper treatment or misdiagnosis, it may leave dysfunction and be easy to sprain again in the future.

The common symptoms of ligament injury are local swelling, pain, ecchymosis and limited limb movement. The etiology and pathogenesis is that external force damages musculoskeletal muscles, leading to the obstruction of meridians and stagnation of qi and blood. After the injury, the injured part is bruised, the meridians are blocked, and the qi and blood are blocked. External application of traditional Chinese medicine plaster can relax muscles and tendons, promote blood circulation, relieve swelling and pain, promote blood circulation and remove blood stasis, dispel wind and cold, and stimulate the regulating function of the body through skin conduction to meridians and bones, which can quickly eliminate swelling and pain, promote functional recovery and quickly achieve the purpose of cure. During the treatment, activities must be reduced, mainly rest and recuperation.