Perhaps something is in the cut and he is trying to get it out. If it persists you may need to visit the vet to remove whatever is embedded. Will the dog let you bandage it? If so, wrap the bandage with duct tape so he doesn't chew it off too quickly.

Cuts, scrapes, bites and many other similar injuries and conditions affect dogs fairly commonly. Though minor, these can cause a lot of pain and discomfort for your pet. Treating these problems quickly, effectively and naturally will save your pet from numerous side-effects, shorten healing and recovery time as well as prevent more serious complications like infection. As any vet will tell you, one of the most important and first steps in addressing a wound, injury or skin condition is to keep it clean and the sooner that this is done following injury or trauma, the more beneficial the intervention will be. Broken or irritated skin is vulnerable to infection and contamination. By following a thorough cleansing routine before applying topical treatment like creams, you are also helping your pet to heal more quickly and preventing the need for more intensive medical care. As always, prevention is better than cure! Clenzor™ from PetAlive http://www.nativeremedies.com/petalive/clenzor-natural-cleanser-for-pets.html ?ysmchn=OTHER&ysmcpn=SM&ysmgrp=ab&ysmtac=PPC cleanses and soothes skin and promotes the natural healing process. Wound Dr.™ from PetAlive http://www.nativeremedies.com/petalive/soothe-cat-dog-skin-scratches-wound-dr.html ?ysmchn=OTHER&ysmcpn=SM&ysmgrp=ab&ysmtac=PPC cleanses and soothe minor cuts, scrapes and irritations of all kinds. To soothe and protect your pet against infection, PawPaw™ from PetAlive http://www.nativeremedies.com/petalive/pawpaw-medicine-for-dog-paw-pads.html ?ysmchn=OTHER&ysmcpn=SM&ysmgrp=ab&ysmtac=PPC encourages healing of small cuts and wounds while reducing inflammation and soothing the paws and pads. Good luck!