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In many cases tonsillopharyngitis are caused by common cold viruses and antibiotics will not help and is not indicated. Treatment in such cases are supportive with analgesics( ibuprofen , paracetamol
, cold tablets, cold sachets, etc..), gargle ( with iodine component), oral lozenges ( strepsil, orophar ), adequate hydration, bed rest, vitamins. But in some cases ( around 30-35 % ) tonsillopharyngitis caused by bacteria such group A B -hemolytic streptococcus
,etc. To determine exactly if infection has bacterial origin you may make rapid strep ( antigen ) test or culture. However you may start empiric antibiotics , most effective are penicillin group ( penicillin V, amoxycillin
or augmentin), or macrolide such azithromycin
, plus additionally above mentioned supportive measures. Duration of treatment usually 7 days sometimes up to 14 , depend of organism response and right chosen antibiotic.
I wish you good luck and speedy recovery,
Hope this helps and I have answered your query.