CBNNews.com - During cold and flu season, many consumers swear by the natural remedy known as "Airborne."

It's advertised as the "miracle cold buster."

In fact, a company press release once boasted that it would "get rid of most colds in one hour."

But some researchers say the product isn't effective.

"The thing that bothers us about Airborne is that it doesn't work," Steve Gardner of the Center for Science in the Public Interest said.

The group filed a class-action suit against the makers of Airborne.

Now, Airborne has agreed to settle the allegations out-of-court by paying millions in refunds.

Still, they deny wrongdoing and won't admit to any illegal conduct.

For now, the company has taken the word "cold" off its packaging.