The following home treatment measures may help prevent sinusitis.

• Use a humidifier to keep the air in your home moist.
• Treat colds promptly. Blow your nose gently. Do not close one nostril when blowing your nose.
• Drink extra fluids when you have a cold. This helps keep mucus thin and draining.
• Do not drink alcohol. It makes the tissues lining your nose and sinuses swell up.
• Do not smoke or use other tobacco products. Smokers are more prone to sinusitis. For more information, see the topic Quitting Tobacco Use in Related Information. Avoid secondhand smoke.
• Use a decongestant nasal spray before or during airplane flights, especially during landing.