Cold Sores are a real pain.

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For the last one week, I have had the most annoying cold sore on the edge of my lip. Also called a fever blister, this happened to me because I was ill for 3 days with a temperature and a cold. It's unbelievably irritating firstly because it hurts and burns so much and secondly because it looks ugly and hideous. I have not been able to go out anywhere for one week. Have anyone of you ever had a cold sore? Share your experiences.