Joint dislocation means that the joint position is not correct, and some are only a line difference, so it is also called wrong line or wrong seam. Although there is only a slight difference between the upper and lower relative positions, the changes caused in the body vary in size. As the saying goes, "a millimeter is missing, but a thousand miles away", as long as there is a little dislocation between bones, it will cause tension and disorder of normal soft tissues around, and all kinds of nerves will begin to react inexplicably.
Usually, you should do the soft exercises of cervical spine and shoulder joint, and often practice hanging the horizontal bar (hanging the horizontal bar is climbing by hand, then bending the knee joint, straightening the arm, relaxing the shoulder, and pulling the shoulder joint up with the weight of your body, not pulling your body up), so that you can recover.