Once patients are identified as potential participants at their outpatient clinic visit, the research nurse will initiate the enrolment process by explaining the objectives of the proposed study to the patient. Informed consents are obtained for eligible subjects. A thorough assessment and measurement of the wound will be done by another research nurse. Participants are asked to complete the first questionnaire. Participants are then randomized to either intervention or control group. Randomization will be done by a randomization list generated by a statistician using a simple randomization method and programmed in a designated computer.