How to Treat a Cold Sore with Ice

Cold sores are caused by the herpes simplex virus, which enters the body through tiny breaks in the skin, usually around or on the lips. The fluid in the cold sore contains live virus that can be spread through kissing, sharing drink or food, or by improper hand sanitation after coming in contact with the sores. Applying ice to a cold sore can reduce discomfort and hamper the sore's development by decreasing blood flow to the area. Ice should be applied during the early stages of an outbreak to obtain the best results.

Things You'll Need

• Wash cloth or towel

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Instructions

• 1

  Remove one ice cube from the freezer.

• 2

  Wrap the ice cube in a wash cloth or towel.

• 3

  Hold the ice directly on the cold sore for 10 to 15 minutes. Repeat every hour.