Participants will register in ePain for an individual account. Then they will finish the the pre-test questionnaire. They will be randomized to either the intervention group or control group. ePain will be accessed by the participants in the intervention group. The control group will remain their regular activities. The participants in both groups will need to complete the pre-test (Week 1), process evaluation (Week 3), post-assessment (Week 6) and follow-up assessment (Week 12). Same questionnaire will be used in the assessments. Demographic data will be collected in Week 1. At Week 1, 3, 6 and 12, pain situation and pain self-efficacy will be collected. Data of negative emotions and quality of life will be collected at Week 1, 6 and 12. The control group will undergo the same assessment as the intervention group.
