Soreness in the arms after workout may be a normal physiological reaction, followed by rhabdomyolysis, muscle strain, etc., which may also lead to this condition. It is recommended to treat it through general treatment and medication. 1. Physiological reaction: In the case of a long period of time without arm exercise, if you suddenly increase the amount of exercise, the body is prone to metabolize a large amount of lactic acid, which in turn leads to the problem of arm soreness. This situation usually does not require treatment, but it is recommended to pay more attention and appropriate massage in order to make the body recover as soon as possible. 2. Rhabdomyolysis: after intense arm exercise, the muscle cells are over-metabolized and necrosis occurs, which in turn manifests the symptoms of arm soreness. Sodium bicarbonate can be used for treatment, and secondly, during the convalescence period, avoid intense exercise to give the arm muscles sufficient recovery time. 3. Muscle strain: when the arm muscle contraction is excessive, has exceeded the tolerance range, it may cause muscle strain, resulting in symptoms of arm pain. It is recommended that the onset of the disease, you can use ice packs for cold compresses, followed by bandages with pressure bandage, in order to alleviate the swelling, pain problems. In addition if the soreness is more intense and affects your life and work, it can be treated with oral non-steroidal anti-inflammatory and analgesic medications such as nimesulide and diclofenac sodium as recommended by your doctor. To sum up, if the soreness after arm exercise persists for a long time and the pain is strong, it is necessary to pay attention to it, seek medical treatment as soon as possible, and standardize the treatment after clarifying the cause of the disease.