It’s always advisable to contact a vet immediately you notice the above symptoms. The above symptoms don’t guarantee that your Dog is suffering from Kennel cough and for this reason, the vet will diagnose and rule out if there’s anything serious.
There is a no-yet-proven test for kennel cough, but the vet will make a clinical diagnosis based on the symptoms and the signs visible to him/her.
Because this condition is highly contagious, veterinarians always advise that any dog suspected to have this condition be isolated from other dogs for a period not less than 14 days. Though, the dogs are more likely to spread the infection on the first 10 days.