Nasal Spray

GP Shares the Correct Way to Use a Nasal Spray This Allergy Season

As we head into allergy season, a surprising study at Birmingham’s Queen Elizabeth Hospital found that only 1 of 99 participants knew how to use a nasal spray correctly, despite 70% reporting regular use. 

In light of this, Dr Rupa Parmar, GP and Medical Director of Midland Health, is sharing how to properly administer an at-home nasal spray and warning of the possible dangers of incorrect use.

How to Use a Nasal Spray

Proper nasal spray use ensures that it effectively treats congestion and minimises side effects. 

  1. Shake the nasal spray well for at least 10 seconds, then remove the cap.
  2. Gently blow your nose to ensure your nostrils are clear.
  3. Tilt your head forward and place the nozzle into one nostril. Use your opposite hand to the nostril to avoid the medication going straight down your nose.
  4. Press down on the spray and breathe gently through your nose. If you sniff hard, you may taste the medication, which can be unpleasant.
  5. Remove the nasal spray and breathe out steadily through your mouth.
  6. If you need it in both nostrils, repeat steps 3 to 5.
  7. When you’ve finished, wipe the nozzle clean and put the cap back on.

Side Effects

Nasal sprays have some common side effects that can cause more irritation than the cold they’re treating. In some cases, users report stinging or burning sensations, dryness, nosebleeds, and an unpleasant taste or smell. But nasal sprays are generally safe and effective when used correctly and for no longer than 3 to 5 days. 

Rebound Congestion

Overuse of nasal sprays can have some worrying consequences. Rebound congestion is when the blood vessels in your nose become sensitive to the spray, leading to further congestion and discomfort. 

Symptoms include a stuffy nose worse than before, a need to spray more often, or a feeling that the spray has stopped working. It occurs when you’ve used a nasal decongestant for longer than suggested, usually more than 3 to 5 days. 

To effectively treat rebound congestion, it’s important to gradually wean off the spray to avoid a vicious cycle and possible dependency. This can be temporarily uncomfortable, but it is much preferable to the congestion and symptoms, which should quickly improve once you’ve stopped.

Dr Rupa Parmar

Medically Verified

This content has been medically reviewed and verified by Dr Rupa Parmar.

Medical note: This page provides general information and is not a substitute for urgent medical care. If you have severe symptoms, seek urgent help.

Last updated: Mar 2026