What could be causing the pain in the corner of my thumbnail (where the nail meets the skin on the side; it's the skin that hurts)? I also have it in another of my fingers and I get it every now and then. I soaked my fingers in hydrogen peroxide for a few seconds to see if it would kill any bacteria or anything, but it didn't do anything. I have no idea as to what this pain is being caused by. How do I get rid of it? It's rather annoying.