My right third finger started hurting at the farthest out joint early afternoon today. Quite red and painful. It hurts to bend and has sort of a throbbing ache. I just took an ibuprofen and am going to use ice and a popsicle stick to restrict movement. I'm healthy, don't have arthritis, lupus, etc. I don't see any sign of a bite. I've used it on the keyboard, not excessively, and put a ring over that finger earlier. Not tight. Any suggestions?