Cold sores, caused by the herpes simplex virus type 1 (HSV-1), are fluid-filled blisters that appear around the mouth. Highly contagious, they cause itching, tingling, and fever. Transmission occurs through direct contact with sores or saliva.

Valtrex

Valacyclovir

500|1000mg

Famvir

Famciclovir

250|500mg

Zovirax

Acyclovir

200|400|800mg

Herpes Simplex Virus Type 1 (HSV-1) Infection FAQ


What triggers cold sore outbreaks in Malaysia's climate?

Sun exposure, stress, and humidity can trigger cold sores in Malaysia's tropical climate.

How is HSV-1 transmitted in Malaysia?

Through direct contact with cold sores, saliva, or shared utensils.

What reduces cold sore healing time?

Antiviral medications like aciclovir can shorten the healing duration.

Do cold sores affect only the lips?

No, they can appear around the oral area, including the chin and nose.

Can cold sores be cured permanently?

No, the virus remains dormant; treatment manages symptoms and outbreaks.

When is the cold sore virus most contagious?

During the blistering phase until scabs form, usually 7-10 days.

How to prevent cold sore transmission?

Avoid kissing, sharing utensils, and touching sores during outbreaks.

What over-the-counter (OTC) treatments help?

Docosanol cream and pain-relieving gels are available OTC.

Does stress worsen cold sore outbreaks?

Yes, stress weakens the immune system, triggering outbreaks.

Can sunscreen prevent cold sores?

Yes, SPF lip balms reduce sun-induced outbreaks.

How often do cold sores recur?

Frequency varies; some experience monthly outbreaks, others rarely.

What foods can trigger cold sores?

Arginine-rich foods like nuts and chocolate may contribute.

Are cold sores and canker sores the same?

No, canker sores occur inside the mouth and aren't contagious.

When to consult a doctor for cold sores?

For severe, frequent, or atypical symptoms; or if you're immunocompromised.

Can cold sores affect the eyes?

Yes, HSV-1 can cause herpetic keratitis; avoid touching the eyes.

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