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Cold Sores

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Cold Sores : What You Should Know

Overview
Cold sores are small blisters that usually form around the lips or mouth. They are caused by the herpes simplex virus (HSV-1) and tend to resolve on their own. While not considered dangerous, they can be uncomfortable or cause concern.

What Causes Cold Sores?

Cold sores are caused by HSV-1, a common virus that can remain dormant in the body and reactivate from time to time. Triggers may include:

  • Stress
  • Fatigue
  • Illness
  • Sun exposure
  • Hormonal changes

How Cold Sores Spread

HSV-1 can spread through:

  • Kissing or close personal contact
  • Sharing eating utensils, lip balm, or towels
  • Touching the affected area and then touching another surface or person

Common Symptoms

Cold sore symptoms can vary, but may include:

  • Tingling or itching sensation
  • Small fluid-filled blisters
  • Redness or swelling
  • Mild discomfort or sensitivity

Self-Care Tips

Cold sores often improve within 7 to 10 days. The following tips may help manage symptoms:

  • Apply a cool compress to reduce swelling
  • Avoid touching or picking at the sores
  • Keep the area clean and dry
  • Identify and avoid potential triggers where possible

When to Seek Medical Advice

It is best to speak with a healthcare professional if:

  • Sores occur frequently or are severe
  • Healing is slow or incomplete
  • You experience other symptoms such as fever or swollen glands
  • You are unsure if the symptoms are related to cold sores
Dr. Muhammad Mohsin
16+ years experience Australia

Written By

Dr. Muhammad Mohsin

Bachelor of Medicine and Bachelor of Surgery, AMC

CEO, Founder and Chief Medical Officer at Prime Medic

Dr. Mohsin leads clinical governance and quality at Prime Medic. He works on improving digital access to evidence based medical advice and timely follow up. His aim is to help patients get clear guidance that is accurate, current, and easy to act on, no matter where they are.

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