These are the 5 worst cities for allergies: map [Video]

(NEXSTAR) – If a walk in the park catapults you into bouts of sneezing, eye-rubbing and coughing, you’re not alone.

Allergy season, which came early this year, is still in full swing with most of the nation forecast to have medium to high pollen levels entering the weekend, according to a map by researchers at IQVIA, the the healthcare analytics and research company that runs pollen.com.

The 5 U.S. cities with the highest pollen count forecasts were Grand Rapids, Michigan; Muskegon, Michigan; Flint, Michigan; South Bend, Indiana; and Lansing, Michigan.

IQVIA researchers create their forecasts comparing historical pollination timing with daily pollen counts, then factor in additional local conditions, such as weather. See more on how the forecast is created on the pollen.com website.

Other cities expected to punish allergy sufferers Saturday were Indianapolis (10.2); Hartford, Connecticut (10.2); Champaign, Illinois (9.8); and Erie, Pennsylvania (9.8). Cleveland was at 9.6, the very top of …