<s>[INST] My son is almost 3 and in the last 6 months he has had random fevers (just 3) no other symptoms. but his sister has panhypopituitarism .And she has random fevers all the timeit just scares me. He shows no signs of having this weight is high 99 %tile height is 99%tile am I worried over nothing? Please help Nikki [/INST] Hi...by what you quote I feel that it could be recurrent viral illness which he is experiencing. Fever of few days without any localizing signs could as well a viral illness. Usually rather than fever, what is more important is the activity of the child, in between 2 fever episodes on the same day. If the kid is active and playing around when there is no fever, it is probably viral illness and it doesn't require antibiotics at all. Once viral fever comes it will there for 4-7 days. So do not worry about duration if the kid is active. Regards -  </s>