You can use the following three methods if your dog digs through the trash can but it doesn’t work:

1. Diversion of attention: Usually when the dog owner finds the dog digging in the trash can, Pay attention to stop it in time. When stopping, you can first use food or toys to divert the dog's attention.

2. Appropriate education: When you find a dog digging through the trash can, you should stop it immediately and educate and criticize it appropriately. Usually, the dog owner can give the dog a penalty stand or reduce the amount of food when feeding, as punishment. The dog will remember it after the number of times increases.

3. Supplementing trace elements: When dogs are deficient in trace elements, they will eat randomly, so dog owners should pay attention to supplementing trace elements for their dogs, and pay attention to a rich diet when feeding. When feeding, feed it with some fruits and vegetables, and supplement vitamins.