Gum pockets should not be poked with needles. Poking pus pockets with needles will not create an effective drainage pathway, and unsterilized needles will cause gum infection, and the perforation will quickly close and play no role. If the pulp infection causes periapical infection and an abscess is formed, the pulp cavity needs to be ground open as soon as possible to open the drainage channel from the root canal opening to the apical foramen, so that the pus can drain out through the cotton twist. If calculus is present in the root and an abscess is formed, root planing can be performed under local anesthesia to scrape away the granulation tissue, rinse thoroughly, and then place tetracycline gel to promote anti-inflammation and healing. Oral anti-inflammatory drugs are also required to prevent the spread of infection.