Wan Tong Tendon Patch has the function of activating blood circulation and relieving pain, soothing tendons and opening collaterals, which is mainly used in clinical cases of tendon pain, muscle paralysis and joint pain. Its main ingredients include drugs that invigorate blood circulation and remove blood stasis, soothe tendons and open ligaments, such as Xanthopanax, Bonesetter, Angelica, Chuanxiong and Mudanpi, which can increase local blood circulation, promote the absorption of inflammatory metabolites, reduce inflammatory edema and achieve the effect of pain relief. There are also drugs to dispel wind and dampness, such as Qiang Wu, Dou Wu, Xin Yi and Jing Zhi Zhi, which have the effect of dispelling wind and dampness and dispersing cold, and can alleviate the pain caused by the local meridians not flowing smoothly. There are also drugs that warm the meridians and disperse cold, such as Chuan Wu, Cao Wu, Gui Zhi, Sang Zhi, Hsio Xin, and Pepper, which can increase local blood circulation and raise local temperature, helping to reduce the symptoms of pain.