40 patients with suspected skin cancer in the face planned for full-thickness surgery will be randomised into two groups: One will receive a traditional tie-over dressing saturated with NaCl and the other group will receive a tie-over dressing saturated with a PHMB-based antiseptic. A quantitative and qualitative bacterial analysis of wounds by using a modified Levine's swabbing technique will be carried out pre-,intra-,and postoperatively. The effect of nasal colonisation with S.aureus on the development of surgical site infections will be investigated. All wounds will be followed a week after surgery to assess development of infections.