I'm 3 1/2 weeks out and had highlights done yesterday - nobody had said anything at all about not doing it, so I didn't even consider asking. I can't imagine that an external treatment like that should be an issue! And believe me, it would have been an issue if I didn't get rid of my roots!!
![](http://images.obesityhelp.com/mbgraphics/emoticons/rofl.gif)
Alison