Hi and welcome to HCM.
Thanks for posting your query here.
is a condition where the tonsils are infected either by bacteria or virus. In general it will be with streptococcus
bacteria. The first line treatment is with pencillin which is very sensitive to the strep.
As your history says it is a recurrence. Hence the doctor prescribed a higher and longer antibiotic.
Even after using the antibiotic for 5 days if the infection persists means you can continue for 2 more days. After 7 days course of antibiotic the infection will be cured completely.
In future if you get a recurrence please go for a throat culture
which will isolate the causative organism and the treatment will be specific.
Hope this is helpful to you