⇒ Vitamin C
In case of a common cold or sinusitis, doctors always advice to increase the consumption of food rich in Vitamin C. Vitamin C is rich in antioxidants, which help fight sinus infection itself and boost the immune system of the body. Vitamin C rich food include strawberries, gooseberry, cauliflower, broccoli, pineapples, oranges, lemon and pomegranates. All these foods are easy to procure and easy to include in your diet. If you are a tea drinker, then you can try lemon tea or lemon green tea.