If redness or irritation of the eye continues or gets worse after 72 hours, discontinue use and consult a veterinarian. (1800petmeds.com)
Breed - Related Health Concerns Hip dysplasia; bloat; distichiasis (abnormal origin of eyelashes along the lid margin causing irritation of the eye); trichiasis (eyelashes turning inward toward the eye causing irritation); epilepsy; digestive disorders (bil-jac.com)
Dogs that have eyelashes that grow in toward the eye (called distichiasis) and other eyelash disorders experience excessive tearing from irritation of the eye. (thesprucepets.com)