Question:

A patient complains about painful blisters around the angle of mouth identify the pathogen :
Herpes Labialis

Updated On: Jul 15, 2025
  • Herpes Labialis
  • Herpangina
  • Herpes zoster
  • Epstein - Barr
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The Correct Option is A

Solution and Explanation

A patient presenting with painful blisters around the angle of the mouth is a common sign of a condition caused by the herpes simplex virus type 1 (HSV-1). This condition is known as "Herpes Labialis," commonly referred to as cold sores. Let us analyze the symptom and match it with the options given:
  • Herpes Labialis: Characterized by painful blisters or sores around the mouth, usually triggered by HSV-1.
  • Herpangina: Typically presents with sores on the back of the throat and tonsils, associated with enteroviruses rather than herpes.
  • Herpes Zoster: Causes shingles, characterized by a painful rash with blisters, usually on one side of the body or face, caused by the varicella-zoster virus.
  • Epstein-Barr Virus: Responsible for infectious mononucleosis and does not typically present with blisters around the mouth.
Given the characteristic symptoms you described, the blisters around the angle of the mouth indicate a diagnosis of Herpes Labialis.
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