Members do not see these Ads. Sign Up. Hi there, I broke the bone at the base of the 5th metatarsal just under 3 weeks ago. They x-rayed it at the emergency department after I rolled my foot on the side at work, and they put me in a temporary cast for 2 weeks. I then saw a doctor and he gave me an 'aircast'. Now I am wondering what exactly i'm meant to be doing with this thing! It's very bulky and hot and a bit smelly too! Anyway, the doctor said now i can try to walk but only using the aircast. And i asked whether i needed the crutches and he said yes until i can walk. And to walk as long as it wasn't painful. But i'm still confused. Is it actually beneficial to walk on my injury using my aircast, or would it heal faster if i kept off it? I'm not one of these people that needs to be active every minute of the day so i'm ok just resting it if this will promote healing better. But at the same time if walking on it promotes healing better i will do that. What would you suggest? Also is it advisable to sleep with the aircast on or off? The doctor again was quite vague about this. He said i could take it off. Then when i asked if it's better to leave it on he also said yes as you might get out of bed to go to the loo and forget i'd broken it. I thought i'm not going to forget i've broken my foot! So i said does it help it heal faster as it's supported and they said yes. So i'm totally confused what to do really. To walk or not to walk, that is the question!