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How to protect your horse's eyes from flies
Use a " grooming mitt " to apply fly spray.
One of the most common remedies used to keep flies away from your horse's eyes in an insecticide fly spray. There are many kinds of sprays on the market.
To ensure that you do not damage your horse's eyes, spray the insecticide generously onto a grooming mitt, and then wipe the mitt around your horse's eyes. If the spray should get into your horse's eyes, flush with cold water.