I want to shrink it. We have this play coming up in our school so we wear costumes and practice for it months before it starts. The problem is when I got my costume it was too big! and my too good of a teacher won't let me change it to another size. It's those chinese silk shirts. I want to shrink it myself if my teacher wont let me and I heard that you can shrink cotton shirts if you put them in hot water and put them in the drier? If that's true will that work on the Silk shirt?