yes
It depends on the perm but it will burn though your hair because you would have just got it perm
Perming was invented/discovered in the 1900s I think and was known as the Marcel wave; very trendy in the 1920s; it was done with an anime of ammonia I believe, but check on this as I may be wrong......
If you are wanting to use a styling product like gel or mousse you can right away. Just don't wash your hair for the recommended 2 or 3 days after.
You don't. Ever. bad bad bad.