Nitric acid [Nitr-ac]
An old practitioner contends that when the painful felon is touched-use a wooden tooth pick, or other bit of clean wood-with fuming Nitric acid, all pain is relieved. Care must be taken not to let the acid run on the flesh. One or two applications give relief. This doctor, a German, wrote that this treatment never failed to give relief and a speedy recovery. A felon seems to be something independent of the body, for it must come out, and thus touching it with Nitric acid seems to kill it and thus facilitate its expulsion.