Re: Inhalers
Might as well stop breathing because air is also a foreign substance.
I don’t see any reason why inhalers should be forbidden.
Besides, going in to such tiny, minor little issues to perfect your fast, I think, is just unnecessary. Reminds me of the story of Moses where he asked a group of people to sacrifice a cow and the people kept asking about the exact details of the cow to the point where the description got so complex that they literally had to pay a giant heap of gold to get that rare cow. Moral of the story, keep it simple or else you’ll find yourself in a difficult and perplexing dilemma.