A Teddy dog ​​retching but unable to cough up anything may be caused by a cold, tracheitis, respiratory infection or canine distemper. It is best to take the dog to the hospital for examination to rule out the disease. When the seasons change, you should pay attention to your dog to avoid catching a cold. If you have a cold, you can give your dog some amoxicillin granules, which should be fed according to the dosage of a child. Disinfect the environment regularly, maintain ventilation every day, and prevent your dog from coming into contact with other unhealthy things. Dog.