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.
Cysts can be painful and easily infected, so be sure to see your dermatologist if you have one [source: WebMD ]. Sometimes age is a factor. Some skin conditions that cause scalp sores, such as ringworm, primarily affect children [source: Berman ]. Others, such as pemphigus, primarily affect older adults [source: National Institute of Arthritis and Musculoskeletal and Skin Diseases ].
Symptoms depend on the affected area of the body: 1  Ringworm is a red skin rash that forms a ring around normal-looking skin. A worm doesn't cause it. 2  Scalp ringworm causes itchy, red patches on your head. It can leave bald spots. 3  Athlete's foot causes itching, burning and cracked skin between your toes. Jock itch causes an itchy, burning rash in your groin area. Over-the-counter creams and powders will get rid of many tinea infections, particularly athlete's foot and jock itch. Other cases require prescription medicine.