2. Women in labour who request an epidural will be randomly allocated to one of three different dressings used to secure the epidural. The epidural will be performed by the duty anaesthetist according to a standard practice. The three epidural dressings are: 3M Tegaderm, Smiths Medical Lockit Plus and Unomedical Epifix. All dressing will be applied in a standardised manner. Since 3M Tegaderm is the current dressing used at St. George's Hospital it will form the control group.