Congestion Treatment For Dogs. Treatment for pulmonary congestion in dogs varies depending on the cause of the congestion. To treat a clogged nose in your pet, dip dip benadryl in water for five minutes.
Run the nebulizer for 20 minutes over the course of a week. If necessary, wipe your dog’s eyes and nose with a warm, damp cloth to keep him comfortable. Never forcibly squirt the solution up their nose.