Mepiform was specially developed to treat old hypertrophic scars and keloids and prevent the formation of new ones. The Safetac layer reduces pain and trauma during dressing changes and is made of silicone, which has been proven to have a positive effect on hypertrophic scars and keloids. If you are using the dressing for preventative purposes, your patients should wear it for between two and six months, depending on the condition of the scar. Ideally, it should be worn 24 hours a day, except when showering or bathing.