A reverse sneeze is a sudden episode of noisy, labored inspiration. It is commonly seen in small breeds of dogs such as Lhasa Apsos, Yorkshire terriers, and poodles, and is associated with drinking or with excitement. Episodes can last from a few seconds to several minutes.
Although the average attack usually only lasts a minute or two and does not really interfere with breathing, it can cause distress, both to the pet and especially to the owners. Dogs that develop a reverse sneeze often have it throughout their lives. The condition rarely gets worse and no treatment is recommended or required. Massaging the neck during an episode may prove helpful in hastening recovery.
If a reverse sneeze is accompanied by other signs of respiratory disease, such as fainting spells, poor exercise tolerance, and/or coughing, some other upper airway obstructions or diseases may be the cause.