To treat separation anxiety in dogs, you can try the following tips:

1. Don’t make a big deal out of arrivals and departures, and use a calm voice when you’re leaving or returning.
2. Establish a word or action that tells your dog you’ll be back.
3. Give your dog a special treat or a puzzle toy stuffed with peanut butter only when you’re gone.
4. Use dog-appeasing pheromones, calming CBD supplements, or soothing herbs to reduce fearfulness in dogs.
5. Leave a worn item of clothing or a familiar smell for your dog when you leave.
6. Enroll your dog in doggy daycare, hire a pet sitter, or ask a friend or neighbor to check on your dog.
7. Exercise your dog before you leave and give them interactive toys to keep them busy.
8. Change your dog’s diet to avoid foods that may trigger anxiety.
9. Gradually increase the time your dog is alone, starting from a few seconds to longer periods.
10. Use pet prescription medication if the anxiety is severe or does not improve with other methods.

: [source](https://www.veterinarians.org/how-to-prevent-separation-anxiety-in-dogs/)