Nasonex nasal spray contains mometasone furoate, which is a corticosteroid used to treat hay fever symptoms such as a runny nose and sneezing. Nasonex works by reducing inflammation, resulting in relief of itchiness and stuffiness in the nose.

Patient Information Leaflet (from EMC): https://www.medicines.org.uk/emc/files/pil.10299.pdf

Dosage

First blow your nose then remove the protective cap from the product. Before the first use, press the pump several times until you get an even spray. Spray two sprays into each nostril keeping your head upright, do not tilt your head back. Wipe the nozzle and replace the protective cap. This should be done once in the morning and once in the evening. Do not exceed the recommended dose.

Side effects include:

• Nose bleeds
• Headache
• Sore nose or throat
• Nasal irritation