December 26, 2014; 4:42 PM ET
As holiday travelers head home from the Chicago area, conditions will feel colder with the chance of some showers over the weekend. more >
Rain this morning
The long, harsh winter at the start of 2014 led some experts to predict that the cold season's "polar vortex" would turn into a "pollen vortex" during the warmer parts of the year, with a massive pollen eruption and a brutal allergy season.
The annual surge of sneezing, watery eyes and runny noses for allergy sufferers is only poised to get worse as the climate changes, and new research shows that greenhouse gases have a direct effect on aggravating these problems.
This time of year everyone's attention is on allergies — most importantly, how to stop them in their tracks. I have patients each spring who complain about symptoms while indoors — even though there is no pollen exposure inside.
It may seem surprising that some hay-fever sufferers get an itchy feeling in their mouths, throats and lips when they start to eat certain foods.