Welcome in H.C.M. for consulting.
I have gone through your query regarding strep throat infection
and tonsillitis leading to trismus
means reduced mouth opening.
Considering your complaints and response of treatment I am suspecting that you are suffering from chronic tonsillitis
with paratonsillar abscess. Due to this abscess muscles of anterior pillar gets inflamed and spasm sets in leading to reduction in mouth opening.
Regarding treatment one should do these basic investigations-
(1) Culture and sensitivity of throat swab.
(2) Blood- CBC, ESR, blood sugar fasting & p.p.
For immediate relief one should do I/D of abscess followed by conservative treatment and after 4 weeks tonsillectomy
operation is the recmonded line of treatment. Some surgeons do not follow this pattern and they do directly major operation I.e. Abscess tonsillectomy.