I am 51 years old and female. I woke up two days ago with swollen\red skin on the first knuckle of my forefinger. It is clearly not the joint , as when I gently pull the skin away from the joint, the underneath area does not seem to be affected. I see no apparent center spot (such as a bite or splinter entry, etc.). I can t say it hurts but it is a little sensitive and looks so odd when my hand is held flat, as one of the wrinkles on the joint looks like it has a little mountain on it. When I make a fist, there is no bump, but the area is just deep red. I have no injury I can think of and haven t been doing anything unusual with my hands. Any thoughts? Thanks