My 10 year old Chihuahua started coughing a few weeks ago and I took him to the vet that gave him some med's to take and all seemed good 2 weeks ago. Yesterday he started again. Your thoughts, he soun...
Our 10 year old dog occasionally eats grass in our yard and is allergic to it. He gets into awful coughing fits afterwards and his eyes get reddened. Didn't bother him when younger. He thinks he's smart but he just can't seem to relate the coughing to eating grass in the yard... :R We give him antihistamine when it's bad and that helps.
Maybe see if he is getting into something outside you haven't noticed before?