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Pruritus is a common symptom of allergic conjunctivitis.We established a mouse model of allergic conjunctivitis using oval albumin (OVA) and discovered an increased level of antigen-specific IgE in the sera of OVA-sensitized mice.Fc epsilon receptor I (FcεRI) was found to be expressed on the somata and axons of mouse trigeminal ganglion (TG) neurons and co-expressed with nociceptive neuronal markers IB4, CGRP and TRPV1.