1)mostly people with recurrent sinusitis are allergic to something like dust,pollen or chemicals...
2)can be due to infection then immunity must be improved if recurrent attacks occur
3)sometimes genetic or by birth bone development od nasal paasages and bony sockets of face is such that these people are more prone.
1)avoid allergens and enviornmental pollution
3)good diet and excercise for immunity
4)nasal spray for decongestion
5)anti allery and antibiotics via doctor prescription
6)sleep with head end elevated
7)hydration is very effective use of juices, water , soups are very impotant
8)also nasal wash repeated during attack
if recurrent attack occur and chronic state occurs that is resistent to drugs then nasal irrigation and drainage operation required.