A member asked:

What happens if you use an ophthalmic antihistamine when you don't have allergic conjunctivitis at the moment?

3 doctors weighed in across 2 answers

May help: Topical antihistamine drops sometime may be prophylactic - especially in the midst of allergy season. We have quite a few known allergic conjunctivitis sufferers start daily drops at the beginning of allergy season and use them throughout.

Answered 9/30/2011

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Nothing: It's ok, has minimal side effects, and may be preventative.

Answered 7/5/2012

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