Is there going to be a Hairspray 2?
According to John Waters, New Line Cinema asked him to write a sequel to the 2007 version of Hairspray, but in June 2010 it was announced the project was cancelled.
This depends on the type of hairspray and use. For example, if you spray a bottle of hairspray into one's eyes it would certainly be harmful. If you get a little hairspray on your finger and then lick it later, you probably won't die. Most hairspray bottles have safety information as well as directions on the bottle, so reading this is your best bet.