Dog bite on my finger. White?

Last night my dog was eating his bone and i tried to pet him...BIG mistake!!!! He turned around, and clamped down on my index finger. I pulled away and in doing his it just made the cut deeper and longer. We did not go get stitches to avoid the dog from getting put to sleep. I think i can see the bone. I have a... show more Last night my dog was eating his bone and i tried to pet him...BIG mistake!!!! He turned around, and clamped down on my index finger. I pulled away and in doing his it just made the cut deeper and longer. We did not go get stitches to avoid the dog from getting put to sleep. I think i can see the bone. I have a band aid on it now but the skin around it is all turning white? Help!!! plzzz
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