Teddy coughs when he gets excited, which may be caused by over-excitement. It will be fine after the dog calms down. Bronchial smooth muscle is mainly controlled by adrenergic receptors and cholinergic receptors. Excitation and excitement will lead to an increase in the release of vagal choline receptors, causing smooth muscle contraction, so excitement and coughing will occur.

There may also be chronic inflammation of the airways, asthma, etc., which can easily lead to dogs coughing and being short of breath. It is recommended to take the dog to the hospital for a check-up.