Characterisation and intervention study in patients with long-term use of nasal decongestants.

This study is for people who have been using nasal decongestant sprays much more than recommended for a long time. While these sprays can help in the short term, overusing them can actually make your nose feel even more blocked and stuffy – this is known as rhinitis medicamentosa. It can become a difficult cycle to break, as your nose relies on the spray to feel clear.

The main goal of this study is to see if a different type of nasal spray, called Mometasone, can help people break this cycle. Mometasone is a steroid nasal spray that works differently from decongestant sprays by reducing inflammation in the nose. Researchers want to find out how many people can successfully stop using their old decongestant sprays after starting Mometasone, and stay off them for a period of time. They are particularly interested in whether people can stop using decongestants for at least seven days in a row, and if they avoid going back to daily use later on.

The study will also look at several other factors. They will check if your overall nose symptoms improve, how easily you can breathe through your nose, and how your nasal passages look inside (using a small camera called an endoscope). They'll also ask about your sleep and how your nose problems affect your daily life and well-being. This information will help doctors understand if Mometasone is a good treatment option for breaking the cycle of decongestant overuse.