Arm pain closed injection, according to the specific conditions to choose the appropriate treatment, such as tennis elbow and other causes of chronic strain, played 2 closed injection can also play the third injection. If it is caused by osteochondroma, osteomyelitis, etc., do not need to play the third shot. In addition, the number of times of closure is also different depending on the drugs used for closure. There are 2 kinds of commonly used drugs, a long-acting anti-inflammatory drugs, generally closed 1~2 times can be, too much injection will cause some damage to the bone, so can not be injected too much. The other is a short-acting one, which can usually be injected once a week for 3~4 times. If there is no effect after a few times, there is no need for repeated injections. Repeatedly hitting the closure is likely to cause localized thinning of the skin, muscle atrophy, and normal tendons and muscles will be degenerated and necrotic. If the arm pain is recommended to go to the hospital in a timely manner, improve the examination, clarify the cause of the disease, and carry out regular treatment under the guidance of the doctor.