My 2 year old son is having high fever since 2 days, and his stool is hard and greenish black color, on first day he vomitted in green color also, he was very tired....i gave him crocin syrup, if temp increases more than 104 degree, then i gave him Mefthol plus suspension syrup, he is very active now. fever will be there untill the power of that medicine, again it comes back.... can you plaese help me... whats wrong