A.H.
As a haircare specialist.. you should really be washing her hair about every 4 days. If you don't want to do that.. then wash it .. wait 4 days and just condition it again. Finesse Conditioner works great on long hair. We use it at the salon. Also with long hair, hot oil treatments work great .. use about every 3 or 4 weeks at first.. then every 6 weeks after that. Use one little tube of hot oil treatments... I put 1/2 on the bottom or ends of the hair.. and the rest near the scalp. She should lose some hair.. but not a lot. If you are loosing as much as you say.. then her hair probably isn't moist enough. So try what I said above.. and good luck. Her hair should be stronger as you go along.