Make sure the lice shampoo is formulated specifically for horses. Lice treatments for cattle or sheep may cause skin irritation and hair loss.
Although lice are found primarily in horses’ manes, tails, fetlocks and along their backs, the lice may also be hiding anywhere within the coat. [2] X Research source Therefore, it is important to treat the horse’s entire body, even if it’s just a light infestation.
Luckily, equine lice can only survive without a host for several days at most, so the paddock can be used again within about 10 days.