Lesley is responsible for the management of Asthma inpatients, a nurse-led clinic for outpatients with asthma, a Severe Asthma Clinic, and a Pulmonary Rehab exercise program for patients with respiratory illness. She is also responsible for the education of health care workers in asthma management, and for keeping asthma procedures up-to-date.

Lesley's areas of specialisation are: Asthma (including severe Asthma), Pulmonary Rehabilitation, and Bronchiectastis.