<s>[INST] My 14 year old daughter has ran a fever going on four days now. I just took her temperature and it s 103 under the arm but 103 orally. Not to sure which to go with. She was diagnosed with Influenza A and I m debating on whether to take her to the ER due to her ongoing fevers. I am making sure she is hydrated. Her heart rate is very high. Is it due to the fever? Should I take her to the ER? I m so confused on what to do. I know they said Influenza lasts for a week or two. [/INST] Hi,It seems that there might be having viral fever but since fever remains very high, it requires some investigations like,complete blood test like TC, DC, Platelet count, MP etc and routine urine check up to know other infection if present.Meanwhile continue antipyeretic medicine clockwise to control fever.Give plenty of water and liquids.Give light diet.Ok and take care. </s>