Pain after the second sealing of root canal treatment is generally not normal. Generally speaking, the pulp has been inactivated after the second sealing of root canal treatment, basically there will be no obvious pain symptoms, if there is pain at this time, it may be the root canal anatomical abnormality or residual dental nerve exists, which causes irritation to the tooth, so this symptom will occur, you need to consult a doctor in time to understand the causes before targeted treatment, so as not to affect the later recovery. If the exudate increases during root canal treatment or the inflammatory material has penetrated deep into the root tip and acute periapical inflammation occurs, the symptoms of pain after the second sealing of root canal treatment may also occur. After root canal treatment, you need to pay attention to oral hygiene, morning and evening brushing and rinsing.