Yoga and Allergies - Not a Good Mix

Why does yoga make my allergies worse? Living in New England during this time of year is a big challenge. The pollen is out in full force and the rainy, low pressure days do very bad things to my sinuses. I started off this dreary day thankful that my usual sinus headache wasn't rearing its ugly head yet. But, just like I suspected, my afternoon yoga caused my sinus headache to appear. I think it has something to do with bending over. My head doesn't seem to like being upside down as that seems to make the pressure in my sinuses build. This really stinks. I find myself avoiding yoga for fear of either getting a headache or making the headache that I already have even worse. I wish I knew how to combat this issue. And on that note, I'm going to find some Sudafed . . .