Prolonged Use of Nasal Sprays Can Worsen Congestion
Nasal decongestant sprays, commonly used to alleviate stuffy noses caused by colds, allergies, and sinusitis, pose a hidden danger when used beyond five days. The Medicines and Healthcare products Regulatory Agency (MHRA) issued a stern warning that continued use past this period can trigger rebound congestion, a condition that intensifies nasal blockage instead of relieving it.
Understanding Rebound Congestion and Its Risks
Known medically as rhinitis medicamentosa, rebound congestion results in worsening symptoms and creates a dependency cycle on the nasal spray. The Royal College of Pharmacy (RCP) highlights that this preventable condition traps users in ongoing nasal blockage, undermining the intended relief.
The MHRA specifically cautions against prolonged use of sprays containing xylometazoline and oxymetazoline, which are popular active ingredients but carry serious risks if overused.
New Regulations and Patient Guidance
To combat this issue, all new packaging and informational leaflets for these nasal sprays will soon carry explicit warnings advising users not to exceed five days of continuous use. However, the regulatory body acknowledges that full implementation will take several months, urging patients to adhere to the new guidelines immediately.
Thao Huynh, head of respiratory imaging and critical care at the MHRA, emphasized, “If your nose remains blocked after five days of using a nasal spray, it may be due to overuse rather than your original symptoms. Continuing to use it can worsen the problem.”
She advises individuals to consult healthcare professionals about stopping the spray and exploring alternative treatments. Huynh reassures that when used correctly, nasal sprays remain safe and effective, underscoring the importance of reading all accompanying leaflets and packaging information.
Pharmacists Highlight Public Awareness Gaps
Professor Amira Guirguis, chief scientist at the Royal College of Pharmacy, revealed that nearly 60% of pharmacists surveyed believe patients do not understand the risks associated with extended usage of nasal decongestants. She supports stronger, clearer product labeling and consistent public messaging to ensure these sprays are recognized strictly as short-term remedies, thereby preventing unnecessary harm.
Stricter Limits Aim to Protect Patients
Previously, the RCP recommended a seven-day maximum for nasal spray use. This updated five-day limit reflects growing evidence and regulatory commitment to safeguarding patients from rebound congestion and dependency.







