Dogs lick air to better detect smells. Their sense of smell is very strong.
Scent Detection
Air licking can indicate nausea or motion sickness in dogs. If persistent, see a vet.
Nausea
Nervous or stressed dogs may compulsively lick air. Try calming training.
Stress/Anxiety
Dental pain can cause excessive air licking. Have your dog's teeth examined.
Dental Issues
Snorting & licking points to respiratory infection. Veterinary care needed.
Respiratory Disease
Stomach issues like acid reflux can prompt air licking. Diet change may help.
Gastrointestinal Upset
Brain conditions like seizures very rarely cause air licking episodes.
Neurological Causes