I was just about to start a thread on this very subject when I saw yours.
I had the same thing with Dash and took her to the vet today
Save your money! Get some Nu-skin as was suggested by samanthac and do it yourself.
The vet( the one I dislike immensely) looked at her foot for 10 seconds, put some purple new-skin on it( half @ssed at that) and
gave me some antibiotics for her $59.00!!!! the pills were $10.57
He charged 13.00 for a small glob of new-skin( that he didn't even put on the entire cut) and 36.00 for looking at her foot
I was in and out of the office in 10 minutes. He said she would probably lick it off anyway. Keep it clean, watch for any signs of infection.. I put some neo sporin between her " toes"and wrapped it with gauze and vetwrap that I got at Wal~mart.
If they can't lick it it will have a chance to heal.