Bismillah
As salam alykom
See Jennifer, Sobhan Allah, I had just read a long research on this issue on the Egyptian Dar Iftaa web site, because I kept hearing differnet views. However, I didnt find it translated. It is a really long and comprehensive research. But I will only give you the conclusion.
1. Regarding the meaning of <i>Nams </i> according to scholars (Shafi, Hanafi, Malki and Hanbali), it varies between hair removal from eye brows or face in general using plucking.
2. Not any hair removal is considered <i>Nams</i>.
3. It is premissible for a male or female to remove the extra hair harmful to the person, and this is not considered <i>Nams.</i>
4. <i>Nams </i>is eye brows hair removal and lightening and from the face as well.
5. <i>Nams</i> in general is forbidden. However, the weighted opinion, is that it is permissible for the married woman with her husband's permission.
This is what I found, not sure if this helped, I know you were inquiring about the Hukum whether it applies on the removal or method of removal. Well, may be we can dig more. But currently I think this will solve her problem. In other words, if she is married, she can go for it with her husband's permission.