hi,
I'm so sorry to hear about your daughter. My daughter was diagnosed aged 7 too and she is now 9. She didn't have a biopsy but the dermalogist diagosed LS and prescribed steoroid creams after several years of extreme itching/burning and redness and also constipation which I've read can also be a side affect.
Unfortunately the steroid creams just exagerated the problem. so we decided to try and cure the cause not just the symptoms, but our GP would only suggest more steroid creams so we decided to look at other things.
I'm not saying this will work, it has definitely been a journey and everyone is different but bascially because LS is an auto immune disorder we looked at trying to boost her immune system through nutrition..
there are loads of reasons why your immune system can be low, so we saw a natropath which got us thinking about other things. ( eg, I think my daughter suffers from anxiety so stress can be a factor, also but all the good bacteria in her gut was gone, so we've been trying to boost this by a very healthy diet, low in gluten and sugar).
After about a year now of being gluten free and low sugar (very tricky with a 7 year old) we can avoid much of the LS symptoms.
If your daughter suffers from constipation, the best thing we have come across is a magnesium powder which we dissolve into water and juice. AS for the itching, we removed all soap from bath time and use either dead sea salts or a bath oil from Neils Yard with essential oils that help relieve the inflamation.
As for topical creams we have got some emu oil, which others on this forum have mentioned, but we use it rarely.
I recently read that LS in girls will eventually go at puberty becasue right now their skin is so thin, and that with puberty the vulva skin will eventually thicken and therefore the condition will just go. I don't know how true this is, I would be very grateful to hear if any of this makes any sense, or helps you.
But good luck, I hope you find some answers.
best