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Acute Sinusitis

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What Is Acute Sinusitis?

Acute sinusitis is a short-term inflammation of the sinuses, which are the air-filled spaces behind the forehead, cheeks, and eyes. It commonly develops after a cold or other upper respiratory infection and can cause pain, pressure, and congestion in the face and nose.

Most cases of acute sinusitis are caused by viral infections and improve on their own within 2 to 3 weeks. In some cases, bacteria may contribute to the infection, particularly if symptoms are severe or last longer than expected.

Acute sinusitis can affect people of all ages and often causes discomfort that may interfere with daily activities, sleep, and concentration.

Acute Sinusitis Symptoms
A blocked or stuffy nose
Thick green or yellow nasal discharge or down the back of the throat, known as postnasal drip
Pain, pressure, or tenderness around the cheeks, eyes, forehead, or nose
Headaches
A reduced sense of smell or taste
Toothache, particularly in the upper teeth
Bad breath
A high temperature or fever
Coughing
Feeling generally unwell or tired

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Typical Sick Leave Duration

1-3 days depending on severity. Our doctor will assess your situation and recommend appropriate time off.

Is Acute Sinusitis a Valid Reason for a Sick Note?

Yes, acute sinusitis can be a valid reason for a sick note if symptoms are severe enough to affect your ability to work safely or perform your usual duties.

Facial pain, headaches, fever, fatigue, and significant nasal congestion can make it difficult to concentrate, communicate, or carry out physically demanding tasks. Time off may be appropriate while symptoms are severe.

💡Good to Know

Employers in Ireland cannot require you to disclose the specific nature of your illness. Your sick note will confirm you are unfit for work without necessarily detailing your diagnosis, protecting your medical privacy under GDPR.

When Should You See a GP in Person?

  • Your symptoms have not improved after 3 weeks
  • Your symptoms suddenly become worse after seeming to get better
  • You have severe pain or swelling around your eyes
  • You develop redness or swelling around one or both eyes
  • You have problems with your vision, such as double vision
  • You have a very high temperature or feel hot and shivery
  • You develop severe facial pain that is not improving
  • You have repeated episodes of sinusitis
  • You have neck stiffness
  • You have a weakened immune system or a long-term health condition that increases your risk of complications

Frequently Asked Questions

What Causes Acute Sinusitis?

Acute sinusitis is most commonly caused by a viral infection, such as a cold or flu. It can also occur when allergies, nasal swelling, or structural problems in the nose block the normal drainage of the sinuses.

Can Antibiotics Treat Acute Sinusitis?

Most cases of acute sinusitis are caused by viruses, so antibiotics are usually not needed. Antibiotics may sometimes be considered if a bacterial infection is suspected or symptoms are severe, prolonged, or worsening.

What Helps Acute Sinusitis Feel Better?

Getting plenty of rest, drinking fluids, using saline nasal sprays or rinses, and taking pain relief medicines such as paracetamol or ibuprofen may help ease symptoms. Breathing in steam may help some people feel more comfortable, although care should be taken to avoid burns.

Is Acute Sinusitis Contagious?

The sinus inflammation itself is not contagious. However, the viral infection that caused it, such as a cold or flu, can spread to other people.

Should I Stay at Home If I Have Acute Sinusitis?

If acute sinusitis develops as part of a viral infection and you feel unwell, staying at home when possible may help reduce the spread of infection to others and give your body time to recover.

How Can You Prevent Acute Sinusitis?

You can reduce your risk of acute sinusitis by washing your hands regularly, avoiding close contact with people who are unwell, managing allergies effectively, avoiding smoking, and treating colds promptly to help maintain healthy sinus drainage.

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