Intrinsic (nonallergic) and extrinsic (allergic) asthma are subtypes of asthma that have similar symptoms but different triggers. Learn more about their differences, causes, and treatments here.
Medical News Today: What to know about intrinsic and extrinsic asthma
Intrinsic (nonallergic) and extrinsic (allergic) asthma are subtypes of asthma that have similar symptoms but different triggers. Learn more about their differences, causes, and treatments here.