Swollen arm by someone may lead to local soft tissue trauma, fracture, bone fracture, according to different etiology, to take different treatment methods, specific general treatment, drug treatment, physical therapy, surgical treatment, etc.. 1. local soft tissue trauma: give intermittent ice packs within 72 hours after the trauma, can reduce blood flow to the injured area, help reduce swelling, can also play a certain analgesic effect. 72 hours later can be replaced by hot packs, the application of Yunnan Baiyao cream auxiliary treatment to alleviate the symptoms, but also can be used in local physiotherapy, such as infrared therapy, microwave therapy or intermediate frequency pulsed electric therapy. 2. Fracture, bone fracture: If the fracture is slight, without obvious displacement, it can be treated conservatively with strict external fixation of splint support or plaster cast. If the fracture is severely displaced, surgical internal fixation treatment is recommended. At the same time, use some drugs to promote blood circulation and eliminate internal bruising, such as Yunnan Baiyao, combined with drugs to promote fracture healing, such as bone-setting capsules, etc. for treatment. Swollen arm by someone should consult the doctor in time, clarify the degree of injury, under the guidance of the doctor for treatment. The above drugs are recommended to be used under the guidance of a doctor.