I would hand-wash it, then roll it in several towels to get out as much moisture as I could.
Lay it out flat and shape it. If it doesn't look like it will hold it's shape, you can pin it down. Then let it dry throroughly.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry