I taught some wonderful lessons today (I felt really good about them afterward), but one of the little boys came and showed me this ugly infection on his right pointer finger! It's caked with yellow all around the nail and swollen. He says it's really painful. Poor kid.
My question is this--is it contagious? He did touch my keyboard, and I want to find a way to disinfect it without damagin the keys, or at least some reassurance that I won't develop a sore before my competition this Saturday.