After several visits with another doctor my dog still had an awful infection on his snout that wouldn't go away. We tried several rounds of antibiotics and he had a biopsy which came back negative for a malignancy. After 3 months and $1000 they suspected MRSA. One visit to Dr. Wallis and he pinpointed the problem as an infected tooth. He removed the offending tooth and my dog is healing well. Dr. Wallis saved his life! I will never go to any other vet for any of my 3 animals.