Hello. Thank you for asking at HCM. First of all, I would suggest you to complete the course of corticosteroid drops & antibiotics suggested by your ophthalmologist. I would also add montelukast & levocetirizine orally. First of all, in case of allergic keratoconjunctivitis, there is abnormality in structure of eye. So please don t worry about build up of her eye. Allergy is an abnormal reactivity of immune system. If she has recurrent allergic conjunctivitis, it is important to identify allergen causing her symptoms. For that I would suggest to consult an Allergist-Immunologist who will advice her some allergy testing and identify the cause. Allergic keratoconjunctivitis is usually due to an allergic reaction to air-borne allergens like pollens, molds, etc. So they usually come from environment rather than from peers directly. and therefore, it is not contagious. (If it is contagious, it is not allergy!) Hope you got all the answers for your questions. Wish your granddaughter the best of the health. Regards.