thanks for choosing HCM
1.Viral infections of throat are usually associated with some allergic component which is usually present at same time in eye also.
you can put her on olopatadine
eye drops twice a day
2.infections of nose have some congestive effect on paranasal sinuses
which can cause pain in eyes also
3.she could be having a refractive error
so do consult a refractionist after 1 week of recovery from her present illness