Hi,
You can do several things to reduce the frequency of sinus infections and alleviate symptoms when they occur.
* Keep your nasal passages moist: Use a humidifier or saline 
nasal spray to keep your nasal passages moist.
* Avoid irritants: Avoid things that can irritate your nose and 
sinuses, such as cigarette smoke, strong perfumes, and chemical fumes. Keep your hands clean: Regularly wash your hands to reduce the spread of germs.
* Treat allergies: If you have allergies, take steps to control them, such as taking an over-the-counter antihistamine or seeing an allergist for more specific treatment.
* Use over-the-counter pain relievers: 
Ibuprofen or 
acetaminophen can help to reduce pain and inflammation.
* Stay hydrated: Drinking plenty of fluids can help to keep your nasal passages clear and reduce sinus pressure.
* Rest and relax: Get plenty of rest and try to reduce 
stress.
* Consider decongestants: If your symptoms are severe, consider using over-the-counter nasal decongestants or nasal 
corticosteroids.
You should consult a doctor if your symptoms persist or worsen despite these self-care measures. He may recommend further treatments such as antibiotics or 
nasal irrigation.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Priyanka, General & Family Physician