My family md reffered me to a pain spercialist for my chronid back, neck, and leg pain. how will they treat chronic pain?

Many options: It is impossible to give a specific answer but options include physical therapy and exercises, various medications and targeted injections.

Pain management: Pain management as a discipline of medicine devoted to the diagnosis/treatment of pain disorders. It is usually a multidisciplinary approach to treat patients suffering from acute and/or chronic pain. The treatment might include physical therapy, exercise, medication, injections ...