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10 Home Remedies for Cold Sores

Cover the Cold Sore

Covering a cold sore with petroleum jelly will speed healing and help protect it from secondary infection with bacteria. Putting a local anesthetic ointment containing benzocaine on the cold sore can also help numb the pain temporarily. However, attempting to camouflage a cold sore with makeup often aggravates the problem, as the chemicals in makeup can make the sore worse. And don't share your lipstick or makeup, either.