Complications resulting from
sinusitis are relatively rare. But when
complications do occur, they may be life-threatening and often require extensive
medical or surgical treatment.
The complications of sinusitis usually involve the spread of the
infection beyond the sinuses.
The facial bones can become infected
(osteomyelitis), or the lining of the brain can become infected
The infection can spread outside the sinus and create
a pocket of pus (abscess) in an eye socket, the brain, or facial tissue.
Sinusitis may also increase symptoms of
asthma and other lifelong (chronic) lung diseases.
Sinus infections are a common problem for people who have asthma. Treating
sinusitis may also help control the symptoms of asthma.