My three month old guinea pig has been diagnosed with lice, which we can see over his back he has been given one dose of xeno450 by the vet, we have cleaned out his hutch and strayed lice repellent and started again with new bedding and hay he is still crawling with lice need to know how long the treatment takes to work and do we need to clean his hutch out completely every day is there anything else we can do/use quite worried as we are new to this and should we keep him out of the way of our worried 4 year old any help would be appreciated thanks