Hello Low grade fever with no sore throat and no infection in ear , so this type of fever may be due to these reasons , these include. 1 Typhoid fever, diagnosis can be confirmed by Widal test and serology test . 2 Malaria , as I have noted in my many patient with such symptoms malaria . Get in blood examination for malarial parasite . 3 Teething particularly first time naturally elevated temperature particularly over forehead and palm and sole of child . Because eruption of teeth causes rupture of gum layers so infection and fever. Take care about and in such cases usually I prescribe calcium syrup with paracetamol suspension ( 10 mg / kg body weight ). Good luck.