I have asthma. Quite severe, have had 3 admissions to hospital already this year with it, as well as needing steroids on multiple other occasions to bring it back under control. I am on strong preventer inhalers and I do what I can to avoid triggers but a big trigger seems to be when I catch a cold or a chest infection. With that being said, is it entirely unreasonable to leave the house wearing flu masks to try and avoid catching germs? It’s really impacting on my life and I’ve had far too much time off work in recent months because of it.