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Cold Sores

Cold sores are caused by herpes simplex virus. Learn about triggers and treatment options.

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Common Symptoms

Tingling before outbreak
Small fluid-filled blisters
Oozing and crusting
Pain
Itching
Fever
Swollen lymph nodes

When to See a Doctor

  • First outbreak
  • Severe outbreak
  • Spreading to eyes
  • Weakened immune system
  • Frequent outbreaks
  • Not healing in 2 weeks

Home Care Tips

Antiviral creams
Ice
Avoid triggers
Lip balm with SPF
Keep area clean
Avoid touching sores

* These are general tips. Consult a healthcare provider for personalized advice.

Related Conditions

Herpes simplexCanker soresImpetigo

See a Doctor for Cold Sores

Get guidance for cold sores from anywhere — start with a free AI symptom check, then connect with a licensed physician for a $39 video visit when you need one.

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Explore more symptom guides and health explainers on the Prana Health blog.

Frequently Asked Questions About Cold Sores

What are the common symptoms of Cold Sores?

Common symptoms of Cold Sores include tingling before outbreak, small fluid-filled blisters, oozing and crusting, pain, itching, fever, and swollen lymph nodes. Symptoms vary from person to person — you can describe yours to Prana's free AI doctor for instant, private guidance.

When should I see a doctor for Cold Sores?

Seek medical care for Cold Sores if you experience first outbreak, severe outbreak, spreading to eyes, weakened immune system, frequent outbreaks, and not healing in 2 weeks. If you're unsure whether your symptoms need attention, Prana's AI doctor can help you decide in seconds, and you can connect with a licensed physician for $39 if needed.

What home remedies can help with Cold Sores?

Self-care measures that may help with Cold Sores include antiviral creams, ice, avoid triggers, lip balm with SPF, keep area clean, and avoid touching sores. These are general tips, not a substitute for professional care — check your specific situation with Prana's free AI doctor.

Can I talk to a doctor online about Cold Sores?

Yes. Prana Health offers a free, 24/7 AI doctor for instant guidance on Cold Sores, and licensed physician video visits starting at $39 with no insurance required. Start a private consultation anytime at pranadoc.com.

Concerned About Your Cold Sores?

Our AI doctor can help you understand your symptoms and guide you to the right care.

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This content is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a licensed healthcare provider.

Last updated: June 18, 2026