My 10 yo daughter has had a sore throat, headaches and ...

I suggest you find a alternative practitioner in your area. The antibiotics are probably not necessary and seem to not be helping. Does she need glasses? Is she active outdoors? Where was she when the first symptoms started? Is the allergy medication working? Is she allergic to dairy or other common foods? All these questions would be important to an alternative practitioner, esp. a homeopathic or acupuncture practitioner.

She already wears glassess(perscription is -.25 each eye). She is due for an eye exam(cancelled it to take her to the pediatrician). She is active outdoors(we're in AZ so outdoors is in the pool in the summer). She first started not feeling well 3 wks ago on Sun. after a sleepover at a friend's house. I found out later that this friend and her Mom both had mono this summer. I don't think that the allergy med is helping. She has never been tested for food allergy. Also, we have a cat and we did have 3 dead rats(the cat caught and killed) in our yard in August.