Three bones meet at your elbow. As long as these bones have the right relative positions one to the next and a normal amount of muscle tension on the muscles attached nearby, your elbow itself should remain in decent shape.
However, muscles pulling in other places on other bones can twist, subtly, your upper arm and also pull on the nerves that go to the region of your elbow. When this happens, all the treatment in the world on your elbow won’t solve your problem because the problem is somewhere else. It is just that your elbow is feeling the pain. Let’s put an end to that pain as quickly as possible by correcting the cause.