hello and welcome to health care magic,
Since she is already under paracetamol
but the fever
is not responsive then you can definitely give meftal
p to get the fever down in consultation with your doctor.
More importantly I would advice you to get a complete blood testing including tox screen and also a throat swab so that a proper treatment can be done.
This is required as inspite of two antibiotics and so many medications her condition is not improving much which either indicates wrong diagnosis or wrong treatment. So get these tests done and get back to me or any ENT with the reports as soon as possible
Dr Sriram nathan