"Dog parasites" refers to small organisms that live on or inside dogs and harm them. These parasites can cause various health problems and discomfort for the dogs. Full definition
We do not recommend the use of dog flea collars or any type of collar for dog parasite skin prevention as these can get caught on objects and harm the dog. (dog-health-guide.org)
The itchy skin can be a consequence of dog parasites such as mites, fleas or ticks. (vetinfo.com)
See below for some common dog parasites, how to detect them and how to keep them from coming back. (vippetcare.com)