I cut my pointer figer open right in the middle of the knuckle two months ago with a knife. I keep it cleaned and covered and it healed fast and what I thought was normal. It has stayed purple/red on my knuckle, swollen and very sore since the day I cut it open. I can bend my knuckle but it is painful. I am concered because of the discoloration. Could there be a infection or septic joint?
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