Cooler weather is on the way, which means keeping a supply of over-the-counter medicines to combat a variety of winter-specific ailments. Cold sores are typical during the cooler months and can strike any member of the family. Keeping Abreva Cold Sore Fever Blister Treatment handy can help the problem go away as much as three days faster. The 0.07-ounce pump dispenser allows for quick application. Use it as soon as you feel that familiar tingle of a fever blister for quicker results.