What are cold sores?
Cold sores are tiny blisters that form on and around the lips, Often at the edge. The blisters pop within a few days and turn into a crust. They disappear within a few weeks.
Cold sores are contagious and spread through close contact. This can include kissing and sharing cups, utensils, or towels.
When people get a cold sore, They may notice itching, Tingling, or burning before the blisters become visible. Cold sores can spread at this stage, But they become most contagious when the blisters are visible.
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