My son had what i thought was an ear ache, now it's slightly swollen under the ear and below the jaw. i think it's tonsils because it also hurts when he chews. any advice?

Dr. can check throat: New throat pain can be from a strep throat infection (antibiotics are needed), a cold or influenza (antibiotics usually not used), or from some other cause such as allergies, irritants, or stomach acid reflux. Usually, a person sees the doctor if the sore throat is recurrent, coming with unusual or worrisome symptoms, or doesn't go away quickly (mainly to check for strep throat).