There are numerous reasons for an older dog, or any dog, to develop a cough including tracheal collapse, heart disease and pneumonia. Sometimes, the cough can be as simple as an irritated throat so when a cough develops ... More » Pets & Animals Pets Dogs

The American Society for the Prevention of Cruelty to Animals instructs owners not to worry if a dog is coughing up foamy white phlegm as this is a common sign of kennel cough. Kennel cough is described as a relatively b... More » Pets & Animals Pets Veterinary Health

Coughing up white foam can be a sign of kennel cough, a fungal infection, bloat or bilious vomiting syndrome, according to VetInfo. If a dog has been boarded with other dogs recently, kennel cough is the prime suspect an... More »

Symptoms of pneumonia in adults under age 60 include fever, chills, mucus-producing cough, rapid shallow breathing and chest pain that becomes worse with coughing. Older adults tend to have fewer of these symptoms but of... More »

According to Vet Depot, hydrocodone is a narcotic sometimes prescribed to dogs to control coughing that is dry and does not produce mucus. VCA Animal Hospital identifies kennel cough, collapsing trachea and viral lung in... More » Pets & Animals Pets Dogs

A dog might vomit for a variety of reasons, ranging from eating too quickly, to more serious injuries or illness, according to WebMD. Sudden episodes may be due to a food intolerance, while chronic episodes may stem from... More »

Dogs breathe heavily for several reasons, one of which is to lower their body temperature through panting. According to WebMD, when dogs pant they evaporate water from the mouth, tongue and lungs. The warm air in their b... More »