Dear friend, welcome to HCM!
You seem to have strep pharyngitis-recurrent.
Was the throat swab cultured and antibiotic given according to the results?
Many times, antibiotics without culture may fail if the bugs are resistant ones.
Get throat swab culture sensitivity done, if not already.
Enquire if the new antibiotic covers PRSP, resistant strep.
Untreated it can cause systemic affection, nephriris (kidney
Get CBC, urine routine, Xray chest done. Watch for UTI/ nephritis
Continue symptomatic treatment till then.
Take care and please keep me informed of your progress.
I hope to have answered your query satisfactorily.