hi dear,i have read the problem n your daughter is suffering from 
acute pharyngitis. so first of all there is a need to introduce antiboitic in the treatment 
- follow this  -
Tablet Azithrommycin 250 mg bd 1 hour before brkfast n dinner for 3 days.
betadine gargle 5 times a day  and add 
aspirin in it .. this will cure pain in throat.
paracetamol 250 mg twice a day for 2 days only.
now with these above medicines start   herbal medicines to prevent the relapse and to boost immunity -
SEPTILLIN SYRUP 2 TBSPOON TWICE A DAY AFTER MEAL FOR A MONTH
KOFLET LOZENZES -4-5 IN A DAY FOR SOOTHING THROAT.
 DRINK BOILED WATER,AND PLENTY OF FLUID
 AVOID CURD , RICE ,ICECREAMS,COLD DRINKS, SPICY AND BULKY MEALS TILL THE DISEASE RESOLVES.
A PIECE OF GINGER WITH HONEY KEPT IN MOUTH GIVES GREAT RELIEF IN 
SORE THROAT.
 PLS COME TO ME IF U FEEL ANYTHING TO TELL, I WILL FEEL HAPPY TO HELP U, BEST WISHES, TK CARE