Poor Harley. Harry my cousins terrier cross is forever busting his dew claw. He will lick at it for a bit and if he catches it he'll hold his paw up but it usually comes off when he's running for a ball. A few months a go he bust a dew claw and it didn't come off like usual. I was concerned it might have got a bit of an infection as he was bothering with it more than normal so we took him to the vet. I should probably add my cousin is quite squeamish so I have to deal with injuries, injections etc

The vet had a look and whipped the dew claw off there and then. No sedation nothing. I was quite pleased actually as it would've been more of an ordeal for Harry had he had to go through sedation etc. this way it was over in seconds. Obviously I had to hold him as my cousin left the building never mind the room when the vet warned he may squeal a little bit. Harry, typical terrier hard as nails, just looked at her while she did it probably wondering why I was holding him in a bear hug.
I always have medical grade Manuka honey in stock for such issues. It seems to work. When S&S had their major falling out a few months ago Scout had a minor wound on his forehead and had kindly tried to pierce his brothers ear so Scott had a wound, bordering on a puncture wound, either side of the tip of his ear. I bathed with cooled boiled water and applied Manuka liberally four times a day. Healed up within two weeks. Had the wounds not improved after a few days I'd have gone to the vet but with my two if a vet trip can be avoided it makes life a lot easier. Obviously as it's Harley's foot a sock would probably be required to stop the licking of the honey.

That's why I like using Manuka it doesn't matter if they lick it.
https://www.amazon.co.uk/Activon-Me...00&sr=8-3&keywords=medical+grade+manuka+honey
(Has a long death date.)