For patients with muscle strain in the arm, some plasters can be applied to assist treatment, such as Yunnan Baiyao Plaster, Compound Nanxing Pain Relieving Plaster, Dieda Pain Relieving Plaster, Huoxue Pain Relieving Plaster, Indomethacin Babu Plaster, etc. This kind of medicine has the effect of promoting blood circulation, removing blood stasis, dredging collaterals and relieving pain, can well promote the repair of damaged soft tissues, reduce local inflammation, improve local circulation, and relieve adhesion, which will have a better therapeutic effect. While sticking plaster, we should pay attention to avoid allergy and use it according to syndrome differentiation. External use should also be avoided where there is local skin damage to avoid adverse irritation. However, for some patients with relatively serious soft tissue strain, the effect of simply external plaster is often limited, which can be assisted by comprehensive intervention with some oral drugs, local physical therapy, acupuncture and other treatment methods, and can also play a better therapeutic effect. Patients can also wear some braces for protection, which can improve the local stability, promote the repair of ligament, tendon and other soft tissue injuries, and will have certain benefits.