My son is 2yrs old.since june he is getting recurrent fever after 15days.he had viral first.then he was fine for 1 week .then again he got fever.i had consulted doc .he said its viral everytime. He gets this fever only for 1 day.then he will be fine.like yesterday he had fever.but since night he didnt get.also little stuffy nose.pls tell me is this cause if concern? A major illness? Im very worried.fever will be of100.1 or less. His wt is 10.5kg