Find quality ankle braces for sale.

Hey everyone.
i sprained my ankle 2 days ago.
i went to the doctors today and had to get xrays.
i got this brace from the doctor…
http://images.google.com/imgres?imgurl=http://www.betterbraces.com/media/catalog/product/cache/1/image/5e06319eda06f020e43594a9c230972d/A/i/Aircast-Air-Stirrup-Ankle-Brace-3.jpg&imgrefurl=http://www.betterbraces.com/aircast-air-stirrup-ankle-brace&usg=__EwbXHmU9U87WbzkFWcRid482Gik=&h=775&w=708&sz=33&hl=en&start=1&sig2=S8B-yLufq87A_47Hq5Au9A&um=1&itbs=1&tbnid=mS0bqpTEF34APM:&tbnh=142&tbnw=130&prev=/images%3Fq%3Daircast%2Bankle%2Bbrace%26um%3D1%26hl%3Den%26sa%3DN%26tbs%3Disch:1&ei=ynPPS9PSLtWY_QaAmOhu
i have to wear it for 2-6 weeks.
QUESTIONS:
-take it off to shower? (or put a bag over it)
-wear it while sleeping?
-i have a communion coming up in about a week and a [...]

yeh just the same as the title.
this is the type of ankle support i will be wearing -
http://www.betterbraces.com/media/catalog/product/cache/1/image/5e06319eda06f020e43594a9c230972d/a/i/aircast-a60-ankle-support-2.jpg

Well i sprained my ankle a while back and it didnt heal right so i got a shot that re-sprained it a few days back so it could get healed up right this time. I havr it wrapped in an ace bandage as the shot made it swell up and i am on crutches. However [...]

Talent Sport Sportonix Ankle Sleeve
http://www.walmart.com/catalog/product.do?product_id=5573864
Does it help the healing process like it says?
I just need it because I spained my nakle a few days ago and I want it to get better faster. Any other suggestions?