The pillow mainly refers to the muscles of the cervical spine, due to the cervical spine muscle fatigue formed when sleeping on an inappropriate pillow, strain, and often accompanied by cold, so there will be muscle tissue edema, and the cervical spine position of the obvious pain, activity is not conducive to the relevant symptoms. But the back does not appear in the case of pillow, but also may be due to the back position of excessive muscle tension, fatigue strain and cold are also prone to muscle tissue edema, such as sleeping pillow is too high, the back muscles will be in the state of excessive tension, if accompanied by cold will lead to the formation of muscle tissue edema and produce pain. After this situation, you need to go to the hospital massage department for local muscle relaxation, to loosen the adhesion dilation of blood vessels, increase venous return to help relieve pain, adverse activities related symptoms, in addition to must pay attention to warmth can not be cold, you can use a warm water bag to improve blood circulation to help relieve the symptoms.