DD 8 has been complaining that her eyes are stinging for the past 6 weeks. Shes been rubbing her eyes and squinting at things during this time. Came on suddenly after she got back from a sleepover at a friend's place (may have nothing to do with that but just happened to notice it straight after).
It went away briefly for about 10 days in the middle but is back again for the past week. We've taken her to the optician to have her prescription checked and it's all ok with her vision and she couldn't see any issues.
I'm wondering if it may be allergies but she has no other symptoms at all. What could it be?