Give your pet rabbits or guinea pigs the protection they need with the Beaphar Fly Guard! This is a treatment that protects your pets against flies. Simply spray it on and there you have it. It's most effective when used during the early summer. It contains Ivermectin that kills the tiny maggots before doing any damage. It's easy to apply and can last for up to 3 months. It's also extremely efficient because one bottle is sufficient to treat 5 rabbits.