When I have a hard time breathing I use the Ac in my car & it helps me so I can see where your coming from. I’ll have to try that.

When i wake up i cough like crazy leaning over my kitchen sink spitting up phlegm .I lost my breathe a few times I am on Oxygen 24/7 I foind if i run the cold water & i feel like i am getting breathless with coughing so much i throw water on my face . keep my wrists under the cold running water help me so much .Might sound silly to some but believe ,me it helps me more than u would ever think . worth a try to the ones that are having a terrible time breathe easy all