There’s a light-red lump under my dog’s eye — what could it be?

A lump-like swelling under a dog’s eye may be caused by a stye, a blocked nasolacrimal duct, a traumatic abscess, a tumor, or other reasons. The owner can wipe the affected area with saline solution, then apply erythromycin eye ointment and observe for a while. If the dog’s symptoms do not ease or other abnormal symptoms appear, it is recommended to take the dog to a veterinary hospital promptly for an examination, find the cause, and apply appropriate treatment. In addition, to prevent the dog from scratching its eye, an Elizabethan collar should be put on the dog in time.