After an episode of loose stools- many kids will have exaggerated gastro colic
reflex i.e. immediately after eating food, they will pass stools- that does not mean that they did not tolerate that food.
Rice, Dal, Idli are good during diarrheal episodes- I think it will not be a problem if you give them.
You may also give plenty of curd- as curd has probiotic
Give her vegetable soups, porridge- made of rice or sago, boiled and mashed potato, mashed banana etc.
You may also give her flavoured ORS
that will be available in chemist shop.
Probiotic sachet like Econorm/ Bifilac- half sachet twice a day for a week- will help in resumption of normal gut flora
Usually formula milk, fruit juices are better to be avoided during a diarrheal illness- as they tend to increase the frequency of stools.
Hope my answer helps you.
Wish your daughter a speedy recovery.