If you’re going through your spring cleaning checklist, you may want to add your dog’s collar to the list. Collars absorb bacteria and odors over time. They can get covered with the oil from your pup’s coat. Every dog owner needs to know how to clean a dog collar. Read the detailed guide here: https://topdogtips.com/how-to-clean-a-dog-collar/
You should clean your pet’s collar every 2-3 months. Of course, if he rolls in something stinky or decides to wade in a mud hole you may need to clean it more often. A dirty collar can make even the most well-groomed dog look like a mess.
"Sometimes collars have ground in dirt. As you can see in my video guide, I use a toothbrush to scrub an especially dirty collar. You can also let the collar soak in a small bowl of hot, soapy water for 15 minutes to loosen the grime."