How do allergies influence asthma?

Allergies play a significant role in influencing asthma by triggering inflammatory responses that exacerbate the condition. When an individual with asthma is exposed to allergens—such as pollen, dust mites, pet dander, or mold—the immune system may react by releasing histamines and other inflammatory mediators. This reaction leads to airway inflammation, increased mucus production, and bronchoconstriction, all of which can worsen asthma symptoms such as wheezing, coughing, shortness of breath, and chest tightness.

The interaction between allergies and asthma is particularly noteworthy because many people with asthma also have allergic rhinitis or other allergic conditions. Managing these allergies through avoidance of known triggers or medical treatment can help improve asthma control and reduce the frequency and severity of asthma attacks.

In contrast, the other options do not accurately represent the relationship between allergies and asthma. The claim that allergies have no effect on asthma overlooks the established connection between allergic responses and asthma exacerbations. The assertion that allergies only cause skin reactions fails to recognize the various ways allergens can affect different systems in the body, including the respiratory system. Lastly, the idea that allergies completely eliminate asthma symptoms is misleading, as allergies can instead lead to more pronounced symptoms in asthmatic individuals.