How is your daughter? What were the results of the laboratory tests? Was there also an imaging study done? Sore throat and ear congestion may suggest an infection which can easily be treated with antibiotics. A referral to an ophthalmologist or neurologist may also be done. If there was no history of head trauma, primary headaches such as cluster headache may need to be ruled out since this can also present with headache and eye pain. Take care and do keep us posted.