Sinusitis is the inflammation of the sinuses which was recorded only in three (0.08%) pet dogs. Sinusitis is
usually caused by inflammation from infectious agents and also resulting from allergies, dental abscesses or from
an inhaled foreign object which creates nasal congestion. Clinically, characterized by sneezing and nasal
discharge and sometimes affected dogs paw at their faces to relieve nasal itching or breathe through their mouth
because of nasal congestion.