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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.
How to Make Cold Sores Go Away Fast. You want the fastest way to dry out a cold sore. The average life span is about 10-14 days, when left to heal on its own. Whatever stage your cold sore is in, though, you can shorten the length of time by applying HERP-B-Gone.