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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 Avoid Spreading Cold Sores. Hereâs how you can avoid spreading cold sores to others: Donât pucker up. You can spread cold sores simply by getting up close and personal with your loved ones. Give a kiss anywhere, but especially the mouth, and you could easily pass on the virus.