Q: What is the ruling on a fasting person using an inhaler for breathing problems, and does it break the fast?
A: Using the pump/inhaler whilst fasting will break the fast since it contains vapour and medication that enters a passage to the stomach which is used for food and drink. Hence once this substance goes into the throat, the fast will break.
However, one will not be sinful for this since the fast was broken due to a genuine medical necessity. Only a Qadha fast is necessary, no Kaffarah is required.
And Allah Knows Best
Darul Ihsan Fatwa Dept.