Thanks for query.
Azax is very sensitive for throat infection
but as you are taking for 4 days and still there is no improvement, it is possible that bacteria are resistant to this medicine.
So it is better to go for throat swab examination and culture so that bacteria causing this infection and medicine effective against particular that bacteria can be find out.
So it is better, do not go for self medication
and consult your doctor.
Ok and bye.