Does your pet have allergies? Common signs found in dogs are related to the skin and include itching, scratching, biting and/or chewing of some or all of the following areas: ears, around the eyes and muzzle, paws, underarms, groin, and anus. In some cases, there may also be episodes of vomiting and/or loose stools, excess flatulence, and stretching (for relief). Contact your vet immediately!