In order to treat the pain in the bone inside the arm, we need to clarify the cause of the pain in the bone of the arm, so that we can carry out symptomatic treatment. If the bone fracture or dislocation is caused by trauma, it needs to be reset, pay attention to rest and protection braking, with the treatment of drugs, such as oral non-steroidal anti-inflammatory and analgesic drugs and blood circulation drugs treatment, commonly used are Nimesulide capsules, blood circulation and elimination of blood stasis capsules are more effective. If there is a bone cyst, it will cause painful symptoms in the bone, and surgery is the main treatment, which requires bone cyst scraping, and bone grafting treatment is also possible. If there is osteochondritis, which also causes bone pain, you can apply topical ointment that activates blood circulation and relieves pain, such as blood circulation and pain cream, and apply heat locally to gradually recover.