found at Amcal
If you keep getting sinusitis, try to work out if there is a trigger that you can avoid or that can be treated. For example, you may need to avoid certain allergens or get better treatment for hayfever or dental disease. A steam inhalation with a few drops of eucalyptus or tea tree oil added may help to relieve sinus congestion. You can repeat this every couple of hours throughout the day. Try holding a comfortably hot compress against the painful areas of your face.