welcome to health care magic..
mam don't worry too much,,it is not a cancer..regarding query he is suffering from tonsillitis
and this infection spreads to ear(otitis).
is not used in the treatment of tonsillitis unless it is glandular fever(infection caused by epstein barr virus)..
before getting delay consult ENT specialist
for further suggestions...
depending upon the duration he will decide either tonsillectomy
operation or simply antibiotics..
because it already spread to ear also..
hope you understand my suggestion,,have a speedy recovery