I have a very painful bumb that is at the tip of my thumb , right past the thumbnail, It does not have a head, however, my thumb has been in alot of pain the last few days, and more recently i can see the pus of the bumb, its starting to rise to a head, i would assume. Is this a common area for a bump or should I be concerned? I feel awful because a small bumb is causing me so much pain just because of where it is.