These plasters are a must-have for any first aid kit. They hold strong for up to 24 hours and are made with proprietary silicone adhesive for pain-free removal. With Nexcare DUO plasters, you no longer have to compromise between pain-free removal or a plaster that stays in place until you?re ready to remove it. Before applying them clean the affected area and gently dry the skin. Apply the plaster without stretching. Use only once.