Hi welcome to Health care magic forum.
You had fever
, relieved in 4 days, got sore throat
, relieved, but red tonsils are persistent, with occasional sore throat.
Probably sore tonsils have become chronic, and infection became persistent. I advise you to consult an E.N.T.surgeon, for diagnosis and treatment.
You may have to go for culture and sensitivity of the throat swab for confirmation of the organism and its sensitivity to the drugs in order of sensitivity.Gargling with salt water can give you a good relief, in the mean while.
I wish you a quick and complete recovery and thanks for choosing H.C.M.F.