Dogs need to be bathed frequently, especially if they are allowed to run around in dirt. Medicated soap is preferred to prevent tick and flea infestations. As such, an animal shelter has an insatiable appetite for dog soap. Unfortunately dog soap is more expensive than soap for humans, and the very cheap brands are ineffective). Petgard is much cheaper than the Lori brand which our veterinarian recommends, but seems to be effective enough, despite the bad spelling.