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Sinusitis is inflammation of the lining of the sinuses, caused by a viral or bacterial infection.
Symptoms of sinusitis
The initial symptoms of a sinus infection are green or yellow mucus from the nose and severe facial pain around the cheeks, eyes or forehead.
Causes of sinusitis
Sinusitis is often caused by a viral infection, but there are also a number of other ways that your sinuses can become blocked and inflamed.
Treating sinusitis
Around two thirds of people who get sinusitis don't need to see their GP. Most cases are due to a viral infection that often clears up on its own.
See what the doctor sees with Map of Medicine
See what your doctor sees, find out what is happening with your Sinusitis treatment and what the next steps might be.
Complications of sinusitis
Complications of sinusitis are more common in children than in adults. If your child has had sinusitis and has swelling around the cheekbone or eyelid, it may
Diagnosing sinusitis
Your GP can usually diagnose sinusitis from your symptoms. It is nearly always caused by a viral infection, such as the common cold or flu, and is diagnosed