Miley Cyrus Shares Photo Of Duck-Face Oxygen Mask After Postponing Tour

04/19/2014 01:26 pm ET | Updated Apr 19, 2014

A long hospital stay isn't stopping Miley Cyrus from having a little fun.

The 21-year-old singer, who just postponed the rest of her U.S. Bangerz tour due to a a severe allergic reaction to antibiotics, shared a photo of her duck-face oxygen mask on Instagram Friday, April 18, writing, "This hospitals full of a bunch of QUACKS 🐤 (get it??? Quacks) #punnyeveninthehospy #stayinglightlovingandpositive #imissbangerztour #tryingtonotbebitter."

Cyrus has been tweeting non-stop about her condition, reassuring fans that she's just as upset as they are about her rescheduled tour dates.

Still, the "We Can't Stop" singer is fighting through the pain and will head back out on the European leg of her tour on May 2.

Get well soon, Miley!

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