Managing asthma when inhalers and steroids are not sufficient

How to treat allergic and severe/treatment-resistant asthma.

Stanley, a 67-year-old retired bank employee, presents with asthma that he is having trouble controlling.

Asthma emergency

He is an ex-smoker of five-pack-years and does not recall any linked occupational exposure.

He and his wife have lived in the same house for many years and they have no pets. His symptoms are slightly better when he is on holidays.

Stanley was first diagnosed with asthma 38 years ago at the age of 29, and he has been reviewed by his respiratory physician for more than 10 years. He has