My 15yr old has PCOS...anyone know of a specialist in Texas?

I am looking for a specialist to take my 15yr old daughter. She was diagnosed in Oct. 2005 w/ PCOS. Had surgery to drain most of her cysts at that time. She was put on Metformin and LoOrval BCPills to try and control her bleeding. In the past 2 months everything has started all over again... the Severe Pain, Very Severe Bleeding and clotting, Nausea. All her dr can think to do is to give her another BIrth control pill to control her bleeding. I just can not stand having to watch her go thru this. Anyone have any ideas?