Skin is the largest organ of the body, weighing nearly 9 lb (4 kg) on an average adult, and covering an area of over 2 sq yd (about 2 sq m). It is also the first line of defense in ally threat from outside, so it is hardly surprising that it is often the victim of aches and pains. This is especially so from accidents and injuries, but infection and illness can also cause painful inflammations from within the body that appear on or just below the skin’s surface. (more…)