Welcome to HCM,
It seems that with antibiotic treatment total infection is not cleared and recurred again.
Go for throat swab examination to find out causative bacteria giving rise to infection.
There is possibility that there might be septic follicular tonsillitis
and remained septic foci.
After report go for higher antibiotic like Azithromycin
as per your doctor's advice.
Avoid fried, chillies and junk food.
Ok anmd bye.