This NHS content is written for people in England. Medicine names, availability, prescribing and services may differ in other countries.
Mometasone nasal (nose) spray is used to treat cold-like symptoms caused by allergic rhinitis. This is swelling (inflammation) of the inside of the nose that can be caused by allergies like hay fever. It's also used to treat nasal polyps (painless, soft growths inside the nose).
Mometasone is a type of medicine known as a steroid (or corticosteroid). Corticosteroids are a copy of a hormone that your body makes naturally. They're not the same as anabolic steroids.
It works on your immune system to reduce the symptoms of inflammatory conditions and allergic reactions, such as redness, swelling and itching.
For adults, mometasone nasal spray is available on prescription, or from pharmacies where it's often sold as Clarinaze. For children aged 3 to 17 years old, mometasone nasal spray is only available on prescription.
Ryaltris, another prescription-only nasal spray, contains mometasone mixed with an antihistamine.
Mometasone also comes as:
- a cream, ointment or scalp lotion for eczema and psoriasis
- an inhaler (puffer) for asthma
View the original NHS website page ↗. Refreshed 19 August 2026.
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