What Type Of Food To Give Kid If She Is Having Loose Motions?

Hi, My girl is 2yrs and 4 months old.5days before she had fever than next day loose motion started.At first she has sticky motions little but fruquently.Dr.gave her medicine,now she doesn t have fever but the loose motions are still the problem.she don t has the sticky type of but still 6 to 7 times in a day.She is very fussy eater so she is very thin but now she is become more weak as i feel.she is not eating or drinking properly but she is active,she is playing,jumping etc.normaly.Because of the loose motion she is suffurring from napy rashesh also.Pls. help me.and also tell me which types of food i shall avoid.plsssssssssssss .Thanks a lot.