Prevention involves proper control of the underlying problem. A person with chronic bacterial sinusitis needs to take the appropriate antibiotics. If there are structural abnormalities within the nose, they can be corrected surgically.
Untreated nasal polyps cause blockage of sinus drainage. If this occurs, chronic sinusitis can develop. Expanding mucus buildup can put pressure on the nerves that control eye movement and vision. This creates double vision or other visual impairments. In addition, mucus buildup can eventually lead to displacement of the eyeball in its socket. Sense of smell may become lost and asthma may become more difficult to manage.
There are no risks to others, as the polyps are not contagious.