Dr. Pramod Kelkar, an allergist at Allina Health, said Ragweed pollen is usually the worst offender in Minnesota because it's so common in the Midwest and it can travel in the air for upwards of 200 miles. Those who are susceptible can feel the irritation from August through mid-October.
"Right now is the biggest time for fall allergies,"Kelkar said. "It feels like the spring is the stronger allergy season, but in fact spring allergies and summer allergies and fall allergies can be equally bad. It just depends on what things you're allergic to."