Category: Pathology | Difficulty: Intermediate | Priority: Nice-to-know
Recurrent infection with herpes simplex virus type 1 affecting the vermilion border of the lips, producing vesicles that crust and heal.
Cold sores or fever blisters that come back on the lips.
[[cold sore; hsv-1; fever blister; vesicle; crust (see: vesicle; bulla; crust)]]
Emphasize contagious nature and triggers such as sun exposure or illness
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