My Vet recommended this : Long time User for my Chihuahua
My Chihuahua has a reverse sneeze, and he used to have leaky eyes as well.  He also tends to cough when he eats very dry food.  I use this once a day (the liquid form which was recommended): I squirt about 10 drops on his food, after shaking the bottle well.....  If he has a coughing bout, I squeeze drops right into his mouth.  (as per Dr.) I have been purchasing this product for several years.  it has become an essential part of my 11 year old Chihuahua's daily life. His blood tests were terrific last time, and he is generally regarded as quite healthy. He hasn't had leaky eyes for years.  I look at old photos and remember when he used to have tears under his eyes.  Of course, I do not know exactly how this liquid works.  But I'm going to keep purchasing it. I adore my vert and she believes in this product.
Rating: 5 stars