Eye related complications with shingles
have a lot of symptoms mainly including pain. Just blood shot eyes do not point in that direction. If there is some watering or discharge it could be a mild infection.
If you experience a ' sand particle ' like sensation in your eyes and some dryness you need to start lubricating eye drops and lubricating eye ointment for a few days.
If there is some inflammation where you experience some burning and eyestrain
you would need anti-inflammatory eye drops 4 to 5 times a day and the redness
should subside in a few days.