How to deal with tear stains in dogs

Reducing tear stains in dogs: i. Diet. Some owners are not keen on dog food and are more than happy to make their own food for their dogs, while others simply eat the same food as they do, but the high salt content of the food can also be a cause of tear stains. Unsuitable dog food can also cause tear stains in dogs, so it may be necessary for owners to try changing it a few times to see how it works. In addition, usually give your dog more water, add some apple cider vinegar to the water can also play a role. Second, physical causes. 1. ear canal infection. When the ear canal suffers from bacterial, viral, mould, parasitic infection, or swollen, painful, scratchy ears, it will cause the dog to scratch its ears frequently with its hind feet. The face is a very sensitive area with the auditory and facial nerves intertwined. As the pain in the deep ear canal extends to the area around the eye, it can also stimulate the tear glands. When too many tears cannot escape from the nasolacrimal ducts, they may escape from the corner of the eye near the nose. 2. Blockage of the nasolacrimal ducts. When the nasolacrimal duct becomes inflamed and swollen due to an infection, the entire duct becomes completely or incompletely blocked and tears cannot drain properly from the nasolacrimal duct. If there is an ingrown eyelash, it will keep irritating the cornea, which can cause great discomfort to the dog’s eyes and lead to frequent scratching of the eyes with the forelimbs, increasing the number of tears and causing severe tear stains over time.