How are allergies and asthma connected?

Allergies and asthma are closely linked conditions that often coexist, affecting millions worldwide. The connection usually comes from the nasal passages and the lungs sharing a shared inflammatory pathway and immune responses in the body. Allergic reactions in the nose, also called allergic rhinitis, are triggered by allergens such as pollens, dust mites, molds, or pet dander. Uncontrolled allergic rhinitis can worsen asthma symptoms. Those affected by allergic-induced asthma also have excessive allergic inflammation affecting not just the nasal passages, but the lungs too! This is why it is very important to treat both upper airway (nasal) and lower airway (lung) symptoms. Because of this, nasal sprays are often part of the treatment plan for those with allergic asthma, even if the nasal symptoms are milder. By treating both the upper and lower airways, asthma control can be maximized which can reduce flare ups and the need for extra medications, but also improve quality of life!