If the wrist sprain and no fracture, you can play closed injection, and have a certain effect; and for patients who have already had a fracture, closed injection is generally ineffective. If the wrist sprain is more serious, and there is obvious pain, but no fracture, through the oral medication does not work well, you can choose to play closed injections, and there is a certain effect, can be effective in relieving pain, anti-inflammatory, reduce swelling. However, if the wrist sprain is serious, has caused a fracture, generally can not play closed injection, in this case the closed injection is not effective, and will affect the fracture healing. For the pain caused by the fracture, it is generally recommended to do infrared physiotherapy, microwave physiotherapy for pain relief. If it is clear that the wrist is sprained, you need to consult a doctor in time, and through the X-ray examination to understand the degree of damage, and then carry out formal treatment, so as not to affect the recovery of the condition.