I believe your daughter had an episode of gastroenteritis
which was left untreated. Following this she had exacerbations of this episode and could not recover from the same. It is possible she is consuming food from her school canteen and this maybe a source of infection. Kindly get her stool routine done as this may help in knowing if there is indeed an infection. Once this is confirmed, appropriate antibiotics can be started and you will be able to notice improvement in the next 3 to 4 days. The presence of fever
itself indicates the presence of infection and so medication will certainly help. In the meantime, avoid cold
drinks, ice creams and candies and encourage plenty of distilled water and home made food.