Autumn has arrived, and you don’t feel so good. You can’t stop sneezing and sniffling. The return of cool weather leaves you feeling not invigorated but miserable.
What’s going on? You may have a pollen allergy, a.k.a. allergic rhinitis or hay fever. Thirty million Americans do, and symptoms typically flare in fall.
Like all allergies, hay fever stems from a glitch in the immune system. Instead of attacking harmful foreign substances such as bacteria and viruses, it tries to neutralize “invaders” that ordinarily are quite harmless — in this case weed pollen grains that fill the air…
