CEDAR RAPIDS, IOWA (AP) -- Allergy sufferers in Iowa may have to suffer a little longer this year.
The Gazette reports that experts say a good rain could help with the pollen, but longer-term relief may not happened until Iowa has a hard freeze.
Iowa's first average frost ranges from late September in the north to around mid-October in the south.
Dr. Amy Dowden of University Hospitals in Iowa City says ragweed and other pollens typically disappear with a light frost, but it takes a hard freeze to deal with the outdoor mold that is even more of a problem for people. And, she notes, that outdoor mold can become indoor mold when the windows are left open.
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