Using a douche can be scary & potentially dangerous, so it's important that you know how to use one correctly before you attempt to insert it into your egg hole. A douche is a device used to introduce a stream of water into the body for medical or hygienic reasons.Doctors highly recommended that you use a douche no more than once a month, as it can potentially unbalance your egg hole & cause your yolk to taste like an egg salad sandwich.Goodluck. Click Here To Eggscribe!octors highly recommended that you use a douche no more than once a month, as it can potentially unbalance your egg hole & cause your yolk to taste like an egg salad sandwich. Goodluck.