So I got a perm back in like November, and its still pretty curly, but its so frizzy now and I dont really like it, I got a nice hair straightener and some Tresemme Heat Tamer Protective Spray stuff and I’m just wondering what it will do to my hair? will it damage it? and will it go back curly after I wash it? will it still be crappy and frizzy after I straighten it? and how long do perms usually last?