Nose and Sinus Congestion Explained

Here are some key facts about the main symptoms, including how to prevent getting ill, and how SUDAFED® can help you get back to your normal self.

Congestion Explained Illustration


It’s well-known that a blocked nose is often caused by having a cold or flu (which we all normally get between two and five times a year). If you’re suffering from a cold or flu, the following congestion symptoms tend to occur:

  • The nose lining becomes inflamed and irritated
  • This causes the nasal passages to become narrower and therefore more easily blocked up
  • Excess mucus builds up in the nasal passages, making it more difficult to breathe


We have developed a range of effective tablets, sprays, capsules and syrups to fight congestion, from a simple blocked nose to sinus pressure and pain. For a cold or flu, we recommend trying a product that can relieve symptoms of chest and nasal congestion as well as fever such as our Mucus Relief Triple Action Cold & Flu Tablets


Colds and flu are hard to avoid altogether, as there are over 200 common cold viruses and many different strains of flu virus. However, following these simple lifestyle tips will reduce your chances of getting ill in the first place:

  • Wrap up warm in cold weather
  • Eat healthy foods to help you keep your immune system healthy
  • Get 7-9 hours of sleep daily to help your body stay strong

Tips and advice Tips and Advice Explore our range of tips that can help you get back to feeling your normal self, fast.
WHY CHOOSE SUDAFED® Congestion & headache relief We're the UK’s #1 selling decongestant brand. For over 30 years, SUDAFED® has been treating congestion.