There are many causes of small arm pain and swelling, common excessive exercise triggered muscle pain, rheumatism, cervical spondylosis, etc. Relief methods include acupuncture and physiotherapy, drug therapy, surgical treatment, and so on. Due to the different causes of relief measures are different, it is recommended to consult a doctor in a timely manner to determine the cause of the disease and then treat the cause of the disease. 1. Excessive exercise: excessive use of small arm muscles can lead to lactic acid buildup and cause muscle soreness and pain, it is recommended to rest in time, can be under the guidance of a doctor, take acupuncture, physiotherapy, massage and other treatments, generally can be cured faster. 2. Rheumatism: Rheumatism is mainly refers to the invasion of joints, muscles, bones and soft tissues around the joints and other parts of the disease, pain is the main symptom of rheumatism, at the same time may appear swelling, joint dysfunction and other symptoms. It is recommended to use non-steroidal anti-inflammatory drugs, such as diclofenac sodium, meloxicam, rosoprofen sodium and other drugs for symptomatic treatment as prescribed by the doctor. 3. Cervical spondylosis: cervical spondylosis is a common syndrome in middle-aged and old people, its symptoms are diverse and complex, arm pain is one of the common symptoms of cervical spondylosis, it is recommended to use non-steroidal anti-inflammatory drugs, such as indomethacin, ibuprofen, aspirin, etc., and in severe cases, surgical treatment can be used. In addition, osteofascial compartment syndrome can also lead to small arm pain, but the disease pain is often more intense, so when the small arm pain, we should promptly identify the cause of the disease, follow the doctor’s instructions for treatment, so as not to delay the condition.