Press the right-arrow key to activate the backlit keyboard. Press the right-arrow key again, still holding down the Function key, to toggle the keyboard through its three illumination modes: full intensity, half intensity and off.
Many different conditions, for instance, can also cause sores on the scalp. Scalp sores can be unsightly, and depending on the cause of the sore, they can also lead to temporary hair loss. These disorders can be contained with the right treatment, but they often need to be diagnosed by a doctor. Scalp sores can be caused by viral, bacterial or fungal infections.
Cluster headaches, which also are vascular, affect approximately 1 million people per year in the United States. Cluster headaches usually cause pain on one side of the head, occur in groups or âclustersâ and can last for days at a time.ension or muscle contraction headaches often are caused by anxiety and stress. These headaches are characterized by dull pain that begins in the neck or back of the head and squeezes the forehead area. They are characteristically described as having a ârubber bandâ tightened around your head.