When and for how long should I use Compeed® Cold Sore Patch?
For best results, the patch should be used as soon as you feel the first sign of itching and burning sensations. Continue to use throughout the day and night to treat all the symptoms of the 5 stages from the tingling sensations to the complete healing. Each patch stays in place for approximately 8 hours. On average, 15 patches are needed to treat an outbreak.