the heat enough to do this? My daughters lice won't seem to go away. I thought of another way to rid them besides the usual but am unsure if it will work. Will using an extremely hot straightening iron from the scalp (not close enough to burn) to the end of the hair kill the nits so they cannot hatch? I have found that using something on the hair such as mayo overnight does kill the live lice it is just the nits that keep causing me and my daughter pain and frustration. Thanks!!