Thinking of moving? Vacationing? Visiting friends or family? If you are one of the 35 million Americans suffering from seasonal allergies to airborne allergens such as pollen, you might want to know where not to go. Fortunately, every year the Asthma and Allergy Foundation puts together a list of the 100 worst places to live with spring allergies. Cities are ranked based on the average pollen count, the average number of allergy medications used per patient, and the ratio of board certified allergists to patients. Here are the top 10 worst cities for allergy sufferers — and some helpful tips to help you cope if you have to be in one of them.