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 ].
1. Flu-like Symptoms. If you feel those familiar symptoms of a head coldâfor instance, runny nose, headache, fever, and sinus congestionâyou might be experiencing an ear infection. You are especially at risk for developing an ear infection if these symptoms stick around longer than a normal cold and just wonât go away.