Pulpitis pain is a type of acute pain that occurs after the dental nerve is infected by bacteria. The pulp tissue is a soft tissue, surrounded by the hard dentin and bone. Therefore, once the pulp tissue is infected, the pressure inside the pulp cavity increases rapidly, and if this pressure is not relieved, it can lead to sharp, severe pain, especially at night, often waking one from sleep. Pulpitis pain at night first requires prompt medical attention, followed by pulp opening and drainage. After the inflammation subsides, it can effectively relieve the pain. If medical attention is not available in time, oral analgesics can be taken for pain relief.