Allergic rhinitis (AR) is a chronic inflammatory condition of the nasal lining caused by an allergic reaction to airborne allergens. It is one of the most common chronic diseases worldwide, affecting up to 40% of the population. AR is often associated with other allergic conditions, such as asthma, sinusitis, and eczema.
- Prevalence: Approximately 80% of people with asthma also have AR.
- Pathophysiology: Both AR and asthma share common allergic triggers, such as allergens and airborne irritants. Inflammatory processes...