Arm pain after electric shock is mainly due to the violent muscle contraction during electric shock, and there may be fractures at the greater tuberosity of the humerus, as well as dislocations of the shoulder joint and other conditions, and there may also be strains due to the violent muscle contraction in the arm area. If there is a fracture of the greater tuberosity of the humerus, it is necessary to carry out external fixation with a plaster cast, or apply Kirschner’s pin cross internal fixation. If there is a dislocation of the shoulder joint, it is necessary to carry out manipulative reset, then shoulder joint fixation, forearm suspension, fixation needs to be about four weeks, after which the external fixation is removed, and functional exercise of the shoulder joint is carried out. If the muscle of the arm area is strained after the electric shock, this situation must let the arm fully in a relaxed state, it is best to carry out the forearm suspension, keep the muscles, tendons, ligaments and other soft tissues of the upper limb fully in a relaxed state, to avoid further stimulation and pulling, or it will lead to the aggravation of the injury. And after 24 hours, warm water bags should be applied to increase blood circulation in the arm area and promote the metabolism and absorption of inflammation, edema and bruising and swelling. If the pain is very obvious, you can take oral anti-inflammatory painkillers, such as celecoxib and clonoxicam, which can effectively reduce the local inflammation and reduce the pain.