Thanks for the query to H.C.M. Forum.
Strep throat culture
Sometimes chronic tonsillitis
associated with hypertrophy.
As sometimes chronically inflamed tonsils become indurated and adherent, due to recurrent attacks of inflammation and subsequent develops fibrosis
It seems that same thing happened in your case due to recurrent infections.
Sometimes pus and debris can be seen as in your case from infected tonsillar crypts.
As in this case only treatment is after bacteriological examination form tonsillar bed.
Hope I have answered your question .
So for this consult one more E N T surgeon and get in his opinion.