Dear Doctor: I had toenail fungus two years ago, and my doctor prescribed Lamisil. It took a long time, but it worked. Now the fungus, which is so ugly, is back again. Why is it so hard to get rid of, and are there any new treatments available?
Dear Reader: Toenail fungus is fairly common, but that’s not much consolation to the 6 million or so people in the United States who have to put up with it.…