J_B, all I can say is "BURN, PAIN"" I have tried the nair for men on my head once, and only once!!!! It was by far the most painfull thing that I have ever done to myself, as mentioned already my head too was extremley sore and red and swolen from using this evil concoction. Please for the love of god stay away from this stuff, please trust me!!!!!
I'd much rather go through a vasectomy with no freezing of any kind than put that stuff on my head ever again.