Seasonal allergy sufferers may have a new miracle cure...and it can be found right on the periodic table.

Researchers at Creighton University say that "noninhaled, intranasal" carbon dioxide (CO2) may combat troublesome seasonal allergies to pollens like grass and ragweed, Sham vs. Wham reports. It is estimated that 40 million Americans battle allergies, and the itchy eyes, sneezing, and runny noses that accompany them.

The Creighton University team, headed byThomas B. Casale M.D., conducted a study in which one group of seasonal allergy sufferers was given CO2 as treatment; a second group was given a placebo. The CO2 group reported a 50% improvement in nasal symptoms (congestion, sneezing, etc.) in 50% of the subjects, while the placebo control group had just a 27.6% improvement rate. Non-nasal symptoms - watery and itchy eyes, for example - showed some improvement, but not as significant.

CO2, though not approved by the FDA for relief purposes, is already used to treat migraines. The CO2 must be applied intranasally while breathing through the mouth to avoid inhalation.

"These findings indicate that noninhaled, intranasal carbon dioxide is very promising as a safe and effective treatment to provide rapid
relief for seasonal allergic rhinitis," Dr. Casale says. "With the exception of a burning/stinging sensation when the carbon dioxide is first
administered, there appears to be no significant side effects with this technique. It could be a good alternative for people who don't
want to take intranasal steroids."

An effective cure without having to resort to medicine? That's nothing to sneeze at.