Hello doctor, My child is 2.8yrs old. Today in the evening at around 6pm he had sudden onset of fever of 101.3 we gave him Crocin 120 6ml at around 6:15pm and after sometime he vomited. The food that he he’d in the lunch came out. But after that he was normal and had baked potatoes and no more vomit. But suddenly at 10pm again fever came and go. Also he was very sleepy. Right now he is asleep but we are worried. What should we do?