Methods to prevent and control dog fleas at home:

1. Maintain hygiene. Clean and disinfect items and places that your dog frequently comes into contact with, as they may leave insect eggs where they have been.

2. Regular disinfection. Wash your dog's bedding once a week, using bleach to help kill flea eggs and larvae.

3. Avoid grass. When taking your dog for a walk, go to a relatively clean and dry place, and try to avoid your dog getting into bushes, weeds, etc.

4. Regularly deworm. Regular deworming of dogs, both internally and externally, is important to prevent parasites.

5. Clean thoroughly. When bathing your dog, you should wash the neck first to prevent fleas from jumping to the dog's head. Wash thoroughly because there will be several fleas jumping out or floating in the water.