It’s a great idea, but there’s a catch.

Nausea and vomiting is an issue that affects a lot of people who have asthma and are also prone to breathing problems.

In the U.S., nasal irrigation systems are used to irrigate the lungs in some cases, but it can also help those with severe asthma or pneumonia.

The problem is that many people who don’t use nasal irrigation don’t get enough air.

So, what are you getting in return?

The National Geographic crew found out what it takes to make a nasal spray and, in this episode, they discuss what’s in your nasal irrigation.