Method: Hydrocolloid and alginate dressings were applied on the donor site of medium thickness skin graft to form an occlusive and a semi - occlusive moist environment.

• 方法：用水胶体敷料和藻酸盐敷料在中厚皮片供皮区创面上形成密闭和半密闭的湿润伤口环境，观察创面愈合时间、感染可能性及伤口疼痛程度。