Thanks for query,
This throat infection
might have treated earlier.
You have got recurrent throat infection causing all problem.
Go for throat swab examination and culture as some bacteria are resistant to normal antibiotic.
After report go for specific antibiotic medicines for long time.
Take vit. B. complex and nourishing diet.
Avoid fried,spicy and junk food.
Do salt water gargles.
ok and bye.