What can i do at home if my 3 yrs old son develop tonsillitis?

Doctor can check: Tonsillitis can be from a strep infection (antibiotics are needed), a cold or influenza (antibiotics usually not used), or some other causes. Usually, a child sees his doctor if the sore throat is bothersome, recurrent, or doesn't go away quickly. A child who must take antibiotics but refuses, may get an injection of antibiotics. Difficulty talking, swallowing, or breathing can be an emergency.