How can I get nicotine out of playpen?

Take the stuff outside & wipe it all down with some Lysol spray or wipes. Then take a big bucket of Dawn dish liquid & hot water & wash everything so that way your child(ren) will not be exposed to the Lysol fumes. I would let it air dry outside. It's really hard to get the smoke smell out of anything so only something strong as Lysol will work.