Going camping when you have asthma

I have to admit I'm a little nervous to go camping. Hubby usually takes Son #1 and Son #2 (both scouts) but Kitty and I stay home (I love my nice, soft bed-not to mention air conditioning!) Last summer, Hubby pitched the tent in the back yard so Kitty could "camp out." The s'mores were delicious (even if they were cooked in the microwave in the house.) But when I went to crawl into my sleeping bag, the dirt in the tent from the previous camp out was overwhelming. I instantly started coughing, and couldn't stop. Why was I the only one that was having a problem with the tent? Kitty has asthma and is currently doing weekly allergy shots. She just looked at me with raised eyebrows as I was struggling to breathe. She was just fine and ended up spending the whole night in the tent. I went inside for a treatment, and stayed inside! Hellllooooo nice soft bed and clean air. Asthma is so hard to understand, there's no one-size-fits-all when it comes to asth...