Observation Indicator
NRS, pain
(1) Number of dressing changes; (2) Comfort during dressing changes: The degree of pain of the patient during dressing change was used to evaluate the comfort. The patients were instructed to use the numerical rating scale (NRS) evaluation, with a score ranging from 0 to 10, with 0 being no pain and 10 being unbearable severe pain (requiring analgesic drug intervention). Among them, 1-3 was mild pain(I), 4-6 was moderate pain (II), and ≥7 was severe pain (III). (3) Comfort of dressing coverage: It was evaluated with the same method and standard of comfort during dressing change. (4) Secondary wounds score: It was evaluated according to the World Union of Wound Healing Societies (WUWHS) evaluation standard for dressings