Hi, six weeks ago I moved house and within the first two weeks I noticed one or two itchy and swelling spots/areas. I thought it will go but it got bigger and more frequent mostly on my hands, knuckle, and leg. I stop drinking the tap water and drank only boiled water. It stopped ever since even my belly got better. But last night I had a swelling and itching on my middle finger below the nail on the left side. I happened to have had an accident last year on the same spot. I slammed shut a drawer together with my finger. The finger was swollen(painless) for about two weeks and when the swelling went down I noticed no nails was growing-a hole was there and eventually my nail started growing back. So, are they related? But this one itches like hell and it is a quite big.