To get rid of the congestion that is contributing to your sinus headache basil, garlic, parsley, horeseradish, wasabi mustard, peppermint, and rosemary extract have been shown to work as a natural expectorant to clear out any mucus. Also... ginger works well with clearing sinuses and organic cold-preessed virgin coconut oil is a good antimicrobial.
A few other suggestions are: -Use a vaporizer or humidifier -Create a steam bath by taking a hot shower, or filling your sink with hot water, then placing a towel over your head as you lean over the sink -Breathe in the steam from a hot cup of tea - drink hot liquids - try a Neti pot for nasal irrigation - avoid sugary foods and try foods rich in anti-inflammatory omega-3 fatty acids - choose anti-inflammatory foods: http://www.nutriliving.com/blog/top-10-anti-inflammatory-foods Let us know what works for you!
In addition, A healthy immune system can help with sinuses if it is triggered by bacteria, viruses, or fungus/mold... Here's an article on boosting immunity: http://www.nutriliving.com/blog/boost-your-immune-system-naturally A good immune-boosting ingredient is reishi mushroom...(good if fungus is not the cause of your condition) http://www.nutriliving.com/ingredients/reishi-mushrooms