Online for Equine offers the Veredus Citro Shield Repellent Gel.

This fly-repellent gel is non-toxic and hypo-allergenic, made from citronella, geranium and cinnamon. This gel is specially formulated for the use on delicate sensitive areas such as the eyes and around the muzzle.

This product is safe for use on skin abrasions.

Directions for use: apply a thin layer to the coat when needed.