When I was young I had terrible sinus problems.  My nose was constantly plugged up and I was a mouth breather.  After changing my diet and doing some colon cleansing these problems cleared up for many years. 
In recent years, however, I've faced a new problem - allergic reactions.  I'm not sure exactly what triggers my sinuses to flare up, but I know it has something to do with dust and particulate matter because when I work in my garden or do other yard work it will trigger reactions that make me feel awful the next day.
This is very frustrating for someone who loves to garden.  Especially when it's increasingly clear to me that the best way to get really high quality food is to grow it yourself.
So, I've been searching to discover what I can do to rid myself of this problem so I can enjoy tilling, chipping branches, cutting weeds, hauling compost and so forth without paying for it with a day of feeling miserable and stuffed up.  I've tried wearing a dust mask while I'm doing these kinds of tasks, but I still get a reaction - possibly because my eyes are still exposed to whatever it is in the dust around here that irritates me.
The last two weekends I've had some good success in that I've been able to do a lot of work in the garden with only a little bit of sinus irritation, which pleases me greatly.  Here's what I've done.  Besides wearing the dust mask if I'm tilling or doing anything else which stirs up dust, I drink lots of lemon water or fresh grapefruit juice throughout the day.  This provides me with natural vitamin C which is an antihistamine.  I also take 2 IF Relief and 2 HistaBlock periodically throughout the day (about every 2-4 hours).  This reduces inflammation and allergic reaction.  Finally, on the off chance that it is a fungus or something in the soil (my neighbor thinks it is and he has worse problems than I do) I've been spraying colloidal silver (Silver Shield) up my nose. 
It seems to work very well and it's a heck of a lot better than taking those anti-allergy drugs.
Oh, I've already planted carrots, radishes, lettuce, beets, parsnips, turnips, onions, Swiss chard, spinach, peas and string beans.  This weekend I'll be putting in some tomatoes, peppers, eggplants, cruciferous vegetables and possibly some grapevines and fruit trees.  If any of you sign up for my herb walk this summer, you'll get to see my garden (and taste some of my homegrown veggies, too).  Go to www.treelite.com to learn about the herb walk.