Compeed cold sore patches offer discreet and fast healing for cold sores, providing up to 12 hours of continuous action from day one. These patches act as a virus shield, reducing the risk of contamination and can be worn under makeup or lipstick. The hydrocolloid technology creates an optimal healing environment, acting like a second skin. For best results, start using the patch as soon as you feel a tingle and continue throughout the outbreak until the lesion is fully healed.