 [ Symptoms ] my little boy who is 27 months has had tonsillitis for over a week now [ Disease ] as per your complain your son is sleeping more due to infection and can be an effect of medication also nothing to worry as when the infection will gradually resolve your son will be better you should continue giving him antibiotics and along with him try to feed him plenty of warm fluids and along with it give him very soft foods every after 2 3 hours use a humidifier in his room as it will help in keeping air moist and soothe his throat hope this information helps regards