Question:

If a person who has ASTHMA and has to use an Inhaler at least twice a day, and these are used at Sehri & Iftaar, can the Inhaler be used whilst fasting in the case of need?

If a person suffers from Hayfever and also one uses a Nasal Spray which is used during Sehri & Iftaar and can the Nasal Spray be used whilst fasting in case of need?

Answer:

In the Name of Allah, the Most Gracious, the Most Merciful.

Both Asthma inhaler and nasal spray may be used at Sehri and then at Iftār.

As for during fast:

1. Asthma pump is specifically designed to pass the medication through ones throat. Using the asthma inhaler during fast without any need for it, will invalidate the fast and a Qadha along with a Kaffarah will have to be kept for the invalidated fast. However, if the inhaler is used in case of an asthma attack, then only a Qadha will be wajib without kaffarah.
2. Nasal Spray is used for the inner lining of the nose. It is makruh to use an inhaler during fast. If the medication from the nasal spray passes the throat, then the fast is invalidated and a Qadha will have to be kept along with a kaffarah. However, if the spray is used in case of an attack, then only a Qadha will become wajib without kaffarah. [1][Retraction: See below]

And Allah Ta’ala Knows Best

Mufti Faisal bin Abdul Hameed,
Montréal, Canada     

Checked and Concurred by,
Maulana Ismail Desai 

[Retraction] There is a revised answer in regards to expiation through the fast broken by a nasal spray. Please review this answer at https://fatwa.ca/sawm/is-my-fast-broken-with-nasal-spray/