One of the main causes of sinus drainage is simply being alive. Every day the human body produces several liters of sinus fluid and mucus, and all of that natural liquid must go somewhere.
It is a area of tenderness of the scalp in which people also sometimes feel stabbing headaches. Others just feel very sore and tender to the touch. It is felt to be caused by irritation of the connective tissue which attaches the muscles of the scalp to the skull (cranium).
Dr. Michael Fisher Dr. Fisher. Scalp pain: There are various causes of scalp pain, including trauma, headache or infection. Injuries to the head, neck, scalp, skull or brain are commonly associated with scalp pain. Headaches may cause scalp pain as the result of vascular swelling, muscular tension, or nerve pain. Scalp pain is also caused by any condition that infects or irritates the surface of the scalp itself, such as skin disorders and.