Second, preventer (or controller) medications aim to reduce the underlying inflammation in the airways and therefore reduce sensitivity to irritants. The mainstay of preventer treatment is inhaled corticosteroids (steroid hormones), although some children can have their asthma controlled with an oral tablet (called montelukast).
Reducing environmental exposure can have a beneficial effect on symptoms for those with asthma, such as reducing second-hand tobacco smoke exposure and reducing exposure to proven allergens such as pets or dust mites.
Louisa Owens, PhD Candidate and Staff Specialist at Sydney Children’s Hospital, University of Western Australia
Adam Jaffe, Professor of Paediatrics & Head of Discipline of Paediatrics, UNSW Australia