My Kid Is 2years And Weighing 12.5kgs..she Has Fever Of

My kid is 2years and weighing 12.5kgs..she has fever of 101degree and 99 up and down from day before yesterday..we usually give crocin ds but it does not reduce her fever even after sponging..my doctor suggested meftlalp is it safe to give and how much ml in how much time gap to be given..if fever comes before specified interval is it safe to give meftlal again..