The Medicines and Healthcare products Regulatory Agency (MHRA) has issued a new warning, urging individuals with blocked noses to limit the use of nasal decongestant sprays to a maximum of five days. Prolonged usage beyond this period may exacerbate the problem rather than alleviate it.
Understanding the New Guidelines
Decongestant sprays are commonly used for short-term relief of nasal congestion caused by colds, allergies, or sinusitis. However, the MHRA has highlighted that excessive use can lead to 'rebound congestion', where the nasal passages become more swollen after the medication wears off. This new regulation specifically targets sprays containing the active ingredients xylometazoline and oxymetazoline, due to reported adverse effects from extended use.
Implementation of Changes
The regulator has mandated that all new packaging and patient information leaflets for these products must clearly state that the duration of use should not exceed five days. Although these changes will take several months to be fully implemented across all products, the MHRA is advising patients to follow the updated guidance immediately.
Expert Advice
Thao Huynh, head of respiratory imaging and critical care at the MHRA, explained: 'If your nose remains blocked after five days of using a nasal spray, it may be due to overuse of the product rather than your original symptoms. Continuing to use it could worsen the condition. In such cases, consult a healthcare professional about discontinuing the spray and exploring alternative treatments. These nasal sprays are safe and effective when used as directed. Always read the Patient Information Leaflet and outer packaging instructions.'
Professor Amira Guirguis, chief scientist at the Royal College of Pharmacy, welcomed the update, stating: 'We support clearer product information and improved packaging, along with consistent public messaging, to raise awareness that these products are intended only for short-term use and to prevent avoidable harm.'



