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Doctor insights on: Is A Cold Sore Scab Contagious

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Until when is a cold sore contagious. My scab came off 2 days ago and I just have a scar?

Until when is a cold sore contagious. My scab came off 2 days ago and I just have a scar?

No longer contagious: You're probably no longer contagious. Herpes lesions such as oral cold sores have active virus only the first few days; once healing is well underway, transmission risk is very low.

Dr. Heidi Fowler
1,043 Doctors shared insights

Cold Sore (Definition)

Also referred to as fever blisters, cold sores are small, painful fluid-filled blisters that are usually found around the lips. Cold sores are very contagious and can be spread by mouth to mouth contact and can spread to the genitalia and cause genital ...Read more


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Hoping you can tell me, is cold sore still contagious after the scab is gone?

Hoping you can tell me, is cold sore still contagious after the scab is gone?

It is actually: Potentially contagious until the lesion has healed.

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When is a cold sore no longer contagious? I know herpes is always there but when is a lesion "safe"? Is it after the scab has fallen off?

When is a cold sore no longer contagious? I know herpes is always there but when is a lesion "safe"? Is it after the scab has fallen off?

Never for sure: There is no way to tell for sure. Some people shed the virus all the time, even when they do not have a cold sore, while cold sores are most contagious when they are oozing fluid, the virus can be transmitted to others even during times when you have no blisters.

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I had a cold sore for about 2 weeks, & the scab fell off & now it's just red & shiny, can I pass it on still to my boyfriend? . Is it contagious?

I had a cold sore for about 2 weeks, & the scab fell off & now it's just red & shiny, can I pass it on still to my boyfriend? . Is it contagious?

You are less: Contagious but we now know that asymptomatic shedding can occur even when lesions are not present. So at this point you are less likely to pass the virus but there is still a small possibility, that is why the virus is so common and some people carry the virus but don't exhibit the lesions. Hope that helps

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What works in taking care of a cold sore scab?

What works in taking care of a cold sore scab?

Cold sores: Melissa officinalis or lemon balm (cream) expedites healing of cold sores. It can reduce healing time by half. Studies also show that regular use can help v recurrences. Brief supplementation with lysine 1, 000mg orally three times a day at the onset, can also hasten healing. Your physician can prescribe oral valtrex (valacyclovir).

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How to make a cold sore scab heal faster so I won't shed?

How to make a cold sore scab heal faster so I won't shed?

Choices offerred: Medically the options are: 1. Topical 2. Oral pills. Over the counter topical are focused on symptomatic relief-not much for decreasing healing time. Prescription meds like topical acyclovir/penciclovir reduces healing time by 1/2 day as well as decrease pain. Oral meds like famvir/valtrex/zovirax decrease the duration during an outbreak of herpes simplex-cold sores.

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How long is it supposed to it take for a cold sore scab to fall off?

Resolution.: Cold sores usually resolve within 7 to 10 days if left untreated.

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How can I get rid of a cold sore scab fast?

How can I get rid of a cold sore scab fast?

Cold sore tx: Your Dr can prescribe oral Valtrex (valacyclovir) or another antiviral medication. Laser txs are also used to treat cold sores. Melissa Officinalis or lemon balm (cream) expedite healing of cold sores. It can reduce healing time by 1/2. Studies also show that regular use can help v recurrences. Brief supplementation w lysine 1, 000mg orally 3 times a day at onset, can also hasten healing. Can't tell you how >

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What would you do to get rid of a cold sore scab?

It needs to heal: Melissa officinalis or lemon balm (cream) expedites healing of cold sores. It can reduce healing time by half. Studies also show that regular use can help v recurrences. Brief supplementation with lysine 1, 000mg orally three times a day at the onset, can also hasten healing. Your physician can prescribe oral valtrex (valacyclovir).

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I have an orangish like a cold sore scab. How can I get rid of this?

If you have: Recurrent cold sores - there are a number of options. Melissa officinalis or lemon balm (cream) expedites healing of cold sores. It can reduce healing time by half. Studies also show that regular use can help v recurrences. Brief supplementation with lysine 1, 000mg orally three times a day at the onset, can also hasten healing. Your physician can prescribe oral valtrex (valacyclovir).

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Can you tell me if I pull a cold sore scab off and put abreva will it spread still?

Can you tell me if I pull a cold sore scab off and put abreva will it spread still?

Don't recommend: Doing that. Let the scab come off by itself. Recommend oral antiviral if you are concerned about transmitting the virus. Yes - it can still spread if you pull off the scab.

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Can you tell me if I pull a cold sore scab off and put abreva will it still spread?

Can you tell me if I pull a cold sore scab off and put abreva will it still spread?

Don't do it!: Yes it will spread. Bad idea to do from healing or scarring standpoint. Never pick at coldsores! If cold sores are a chronic issue for you, see your primary doctor for a prescription medication you can take at the onset (when you feel the tingling and before there is a visible sore) of a new episode.

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How do I heal a scar that left a crater on my cheek from a cold sore scab that was picked?

How do I heal a scar that left a crater on my cheek from a cold sore scab that was picked?

Facial scarring: See a dermatologist or a plastic surgeon. They are trained to deal with situations like this. Good luck.

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How do you get rid of a cold sore scab fast? I get 1 by the same side of my nose since I was 7 every 2 yrs. Why? How do I stop it from happening?

Antibiotic ointment: I suggest Bacitracin ointment 2-3 times daily. Get some prescription for antivirus (eg valtrex) and start at first sign of blister the next time as the blister will be smaller, heal faster.

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Can you get genital herpes if someone with a cold sore scab spits on your clitoris?

Problems with HSV-1: The cold sore virus, HSV-1, is similar to the genital herpes virus HSV-2. Unfortunately, if someone has an HSV-1 lesion that's active (red and crusty like a 'volcano') then it could be infectious to others who are non-immune. The HSV-1 virus prefers to go to the mouth area, but there are cases when it can spread to the genitals or other sites if the exposure is significant. Call doc for antiviral.

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I have a cold sore scab above my top lip and it looks horrible! It is so big! Is there ANYWAY to get rid of it or speed the healing process?? Is it true if the cold sore is on skin that it would take 7 DAYS! More longer than a one on your lip? Please help

Keep it moist: Once you have reached the scab stage, it just has to resolve on it's own. If you keep it moisturized with ointment, it will soften the scab and heal more quickly. If you have recurrent cold sores, consider having an antiviral onhand (pills and ointment). If you take or apply antivirals as soon as you begin to get symptoms (itching or burning), you can often abort the full blown cold sore.

Contagious (Definition)

One is able to transmit an infection to another by ...Read more