That is great news that she is recovering.
I have a 9 weeks old chick with the same symptoms.
This is the second time his legs got paralyzed. It happened first when he was 2.5 weeks old and he recovered with B vitamin complex.
Than all my 6 chicks had blood in their poop and I gave them all Corid for 5 days. 1 week after the first treatment I saw red poop again and gave them corid for 5 more days.
After 2 weeks I gave them again Corid for 3 days as advised by the feed store.
It was during the 3rd day that I saw the chick not standing.
He is inside since yesterday morning when it happened.
I have been giving him B vitamin, garlic, yogurt but no improvements yet
How did you do the epsom salt flush?
I might give it a try if he has no improvement.
Thank you very much for sharing your experience in detail and I hope your girl will have a full recovery very soon.