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 can sneeze for a number of reasons, including allergies, infections and foreign bodies. Older dogs may also sneeze if they have a tumor growth somewhere in their nasal cavity. More » Pets & Animals Pets Dogs