If you decide to let your daughter use Tampon, you need to let her know that she CANNOT wear Tampon for extended period, e.g., several hours. There are girls dead because of it. (http://www.netdoctor.co.uk/features/tampons_003834.htm, you can Google more info.)
(I do not have a daughter; so I do not know what I will do.)
(I do not have a daughter; so I do not know what I will do.)