Hi Vincent, and thanks for your post and question about your wife. Others in the community have expressed similar sentiments when it comes to exercise induced asthma (EIA), and exercise. The 'proper' response can vary from patient to patient. What might be appropriate for one patient may differ for another. For some patients, they are able to medicate themselves prior to starting an exercise routine and that may work for them. Others may medicate themselves (successfully), during the routine, and that may work for them!
This is something you may want to discuss with your wife and her physician. The doctor should be able to guide you wife as to the best method for her particular situation. What do you think?
Should you want to read more about this very interesting topic, we have a number of article published, right here on our asthma.net site. For your convenience, here is a link to several of those articles: https://asthma.net/search?s=exercise%20induced%20asthma. I do hope you find them to be helpful in a practical way.
Wishing you well,
Leon (site moderator asthma.net)