Awww!! Poor Charlie!! Ouch! Sounds so painful. I wonder what he could have caught it on. Something you might want to keep in your "kitty medicine cabinet" is something called Quikstop. It's really good for when your clipping nails and accidentally cut into the quick and the nail bleeds. I'm not sure if this would have helped in this case with Charlie, but it's not a bad idea to have on hand anyway!! I'm glad he saw the vet and is getting better now! Brave boy!!
**hugs**
Karen