I have noticed 15 year old DD's brows looking patchy a while ago (when not all shaded HD style). Now her lashes are looking sparse on one eye and I have seen her absent-mindedly tugging at them while watching tv etc. I broached the subject and she got annoyed with me, so I've backed off for now (although not really, I've come here for advice instead).
She's a pretty happy teen with a good group of friends, we get on well so I'm sure I'd know if something was up, but she can lack confidence sometimes (hides it well but I know).
What can I do to help her? Does she need to see someone? Will she just stop? I'm pretty worried, should I be?