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Many folks eat high lysine foods prior to or during a cold sore event, and avoid high arginine foods. For many folks, healing cold sores fast has been as simple as taking 1,000 milligrams to 3,000 milligrams of lysine in capsule supplements during an outbreak. High lysine foods to eat are most meats and dairy products.
Rubbing Alcohol. Rubbing alcohol works to dry the cold sore so that it heals. It also helps to reduce the duration by decreasing the risk of bacterial contamination. To use rubbing alcohol, make sure you get a 70 percent solution which is available at drug stores.