I cut my middle knuckle on my middle finger with a serrated knife 6 days ago. Although it bled a great deal, the cut was clean and it closed up nicely. I kept it covered for the first three days and then left it uncovered. The cut is healing nicely. I had a great deal of swelling from the middle knuckle to the joint in my hand that finally went away after Day 4 but it is now starting to swell again and turn purple right where I cut it. I still can t make a right fist with that hand and touching the finger is sensitive. Please advise if this is normal. Thank you