I don't know how accurate this is, but I did find this. I don't know myself if they can have colds or not.
What if the puppy starts coughing?
Don't panic! Like a common cold, canine cough (dog flu) will run it's course.Robitussin - DM cough suppressant (child dosage) will reduce coughing. (1/4 teaspoonful per 5 pounds, three times daily. Although the coughing is annoying, it usually does not develop into anything more serious. However, if the coughing persists or worsens, you should contact us.If the puppy sounds very congested as well. Like humans, dogs can catch the flue, or a cold, anywhere! Tracheobronchitis is sometimes called:Canine Cough, Kennel Cough, Canine Cold, or the Dog Flu.To many, the term, "kennel cough" means that this disease can only be contacted from a kennel. However, exposure to Kennel cough most often occurs at dog shows, kennels, groomers, or any place there are a number of dogs. Kennel cough is a contagious diseaseaffecting the respiratory system of dogs.It is influenced by various environmental factors and is usually produced by a viral agent.
http://wizardofclaws.com/find.htm