Perform neck exercises to get your neck back into normal alignment. If you are sitting with poor posture it will cause your head to sit forward head on your neck. Over a period of time, the cervical vertebrae in your neck can re-shape themselves into an unnatural curve. You should perform exercises to re-align your vertebrae and make you hyper-aware of your posture at all times may correct a hump on the back of your neck. to learn more on how to get rid of your Neck hump please click here.