I have a fever blister that is in my nose and i think it has spread to my eye. is this possible? my eye is very red, vision becoming a little blurry

Nasociliary nerve: The varicella zoster virus (chickenpox) can reactivate simultaneously in the eye and the tip of the nose. Known as hutchinson's sign, the common pathway is the nasociliary nerve. This is theoretically possible with herpes simplex virus (fever blisters), but that virus usually affects the lips, the eyes and the genitals.See an ophthalmologist asap to prevent complications of inflammation.

See an eye doc: Herpetic infections can spread along nerves and affect different parts of the body along a given nerve path. It is very possible that your infection has now involved the eye. You should be seen by an ophthalmologists asap. Untreated, this could cause permanent vision loss.