Instructions
Purchase an Elizabethan collar, also known as an E-collar. These collars prevent a dog from bending their head enough to reach the spot with their mouth.
Apply a topical antibiotic and wrap the foot with a bandage. This is best used in conjunction with an E-collar so the dog does not remove the bandage.
Apply bitter tasting spray or gel to the location being chewed. These can be bought at pet stores and are harmless if ingested, but taste very bad.
Clip the dog's claws regularly to prevent irritation caused by rubbing or jagged edges of the nail.
How to Get My Mastiff to Stop Chewing Her Foot
There are many physical reasons why dogs chew at their feet, including allergies, parasites and skin problems. The problem may also be caused by psychological issues. The chewing problem can be so severe that the dog licks the spot raw, or chews their own paw pads or toes off. Stopping the problem by temporary means is an important step in allowing the injury to heal while the root cause is discovered. A veterinarian can prescribe a long-term treatment to keep the problem under control.