Common symptoms of chronic sinusitis include: 1. Thick, discolored mucus from the nose, known as a runny nose. 2. Mucus down the back of the throat, known as postnasal d… See more

The cause of chronic sinusitis usually is not known. Some medical conditions, including cystic fibrosis, can cause chronic sinusitis in children and teens. Some conditions can make chro… See more

The following factors raise the risk of getting chronic sinusitis: 1. A dental infection. 2. A fungal infection. 3. Regularly being around cigarette smoke or other pollutants.… See more

Serious complications of chronic sinusitis are rare. They can include: 1. Vision problems.If a sinus infection spreads to an eye socket, it can reduce vision or possibly cause blind… See more