Compeed Invisible Cold Sore Patch 15sCompeed® Cold Sore treatment is the first discreet healing patch for cold sores. Up to 12 hours non-stop action from Day 1 - to heal fast.Each discreet patch creates an optimal healing environmental and stays in place for up to 12 hours**Individual experiences may vary. In a clinical study involving 174 subjects 25% of the subjects had a wear time of 12 hours or more.Acts like a virus shield****The patch acts like a virus shield to reduce risk of contamination from the cold sore.Hides Cold SoreMakeup or Lipstick can be applied over the patch.For best results start using when you first feel a tingle and continue using a patch day and night throughout the outbreak until the lesion is fully healed.15 x Patch 1.5 cm x 1.5 cmContains hydrocolloid to heal fast