If you suffer from indoor allergies a new study finds you're likely to have a more severe reaction to outdoor allergies, especially during ragweed season, which is just starting.
Good Question: Why does it seem my allergies are so bad this time of year?
Michelle Jason suffers year round from allergies.
" I'm allergic to a lot of things, almost everything, indoor, outdoor, mold, dust everything outside, grass, trees, uh wool, milk," says Jason.
As a realtor she knows immediately if there's a cat in the house.
"If I'm hosting an open house, I'll put the cat in the bathroom and shut the door. I have no choice, I like cats, but I can't sit in the middle of an apartment sneezing while people walk in and out," said Jason.
Now research shows her indoor allergies can make her outdoor allergies even more severe, especially toward the end of summer when pollen filled ragweed thrives across the country.
"Individuals that had year round or perennial allergies to these indoor allergens, when ragweed season hit, had more sudden symptoms," said Dr. Cliff Bassett with the American College of Allergy, Asthma and Immunology.
Researchers found people with year round allergies have an immune system that is hyper-sensitive from always dealing with their symptoms, so when ragweed season comes along their primed immune system in effect over-reacts.
Ragweed, which refers to 15 different types of plants in the sunflower family, grows everywhere in August and September.
That's when doctors say patients who don't treat their allergies year round will suffer the most.
"Those are the patients that seem to be much more symptomatic during the allergy season and even medications don't work as well on these individuals," said Dr. Bassett.
Michele Jason now gets a shot every other week, prevention that keeps her from sneezing and sniffling later.