Feline asthma is an allergic inflammatory airway disease causing episodic breathing difficulty that responds well to inhaled corticosteroids.
Feline asthma causes genuine respiratory distress - affected cats in acute episodes are breathless and frightened. The crouching open-mouth breathing posture represents severe respiratory compromise. Without treatment, asthma is progressive with increasing airway remodeling. Inhaled corticosteroid treatment dramatically reduces episode frequency and severity. Environmental allergen management directly improves welfare by reducing the frequency of frightening acute episodes.