Jennifer,
My older daughter, Kayla, has a problem with allergies, especially this time of the year (as well as spring). She is allergic to mold and tree pollen...so fall seems to be bad for her for molds and spring for tree pollen. But, with Kayla, her eyes get really itchy and watery and she begins to cough more when her allergies are bugging her. She takes claritin every day to help out. But sometimes even that doesn't help if the counts are way up there!
I would watch Alayna and make sure she doesn't show any other symptoms. And if things don't get better in a few days, it probably wouldn't hurt to put a call into her dr.
By the way, Alayana is just adorable!!!