Many dogs that contract Kennel Cough will display only minor signs of coughing that may last seven to ten days and will not require any medication at all. The majority of dogs with the disease continue to eat, sleep, play and act normally... except for that annoying, dry, non-productive coughing that seems so persistent. It is always a good idea, though, to have any dog examined if coughing is noticed because some very serious respiratory diseases such as Blastomycosis, Valley Fever, Heartworms and even cardiac disease might display similar sounding coughing. Your veterinarian, through a careful physical exam and questioning regarding the dog's recent environment, will be able to establish if the dog's respiratory signs are from kennel Cough or some other respiratory insult.
Treatment is generally limited to symptomatic relief of the coughing with non-prescription, and occasionally prescription, cough suppressants. If the dog is running a fever or there seems to be a persistent and severe cough, antibiotics are occasionally utilized to assist the dog in recovering from Kennel Cough. It can happen that secondary bacterial invaders will complicate a case of Kennel Cough and prolong the recovery and severely affect the upper airway. Therefore the use of antibiotics is determined on an individual basis.
http://www.thepetcenter.com/gen/kenc.html
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