WATERLOO (KWWL) -- There's a new treatment option for people with severe asthma. It's called bronchial thermoplasty.
Doctors put a wire inside the lungs to melt off some of the tissue that squeezes airways shut.
The Alair system, rolling out this month isn't a cure, and comes with risks..
It's meant for those who experience frequent attacks despite daily medication.
The FDA approved it last week.
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