15mm Cold Sore patch ensures cold sores stay covered, which can help prevent spreading and reduce blistering. Ultra thin patch conceals the cold sore and feels comfortable on your skin. Larger and thinner, Smart Cold Sore Patch is infused with lemon balm, which has been shown to reduce healing time, redness, swelling, and pain from cold sores. Extra large patch helps to reduce itching and pain, stopping the urge to scratch or touch the area with a gel cover that provides a moist environment to help relieve pain and prevent scabs. When cold sores are exposed, they can blister, leading to scabbing and scarring. Using large patches, you can help prevent your cold sores from blistering and speed up healing. These patches are 15mm and ultra thin as a discreet way to help treat and hide your sores than typical expensive cold sore medication. Skip messy creams and help healing with a patch that does more for less.