<s>[INST] my 1o month old baby boy got high fever (104F) .Doctors told it is not flu but it seems to be viral fever. But no reason is known . He is teething also. Sometimes he seems to shiver little bit. Fever keep on coming back .He has this since two days. What is the reason for this ? How can we take care of him? [/INST] Welcome to healthcare magicMy advice in this situation is to keep record of body temperature of you baby.Give acetominophene  (paracetamol) if temperature is above 100°F.Keep your baby clean and well hydrated by appropriate liquid diet like boiled water milk and soups.Viral fever subsides on its own.Considering that it last longer than 72 hours consult your paeds doctor for work up </s>