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Doctor insights on: Can I Have Mrsa In My Cold Sore I Had Mrsa About 3 Months Ago

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My nose is peeling and under it is raw red skin is that MRSA or a cold sore? I am a nurse

Red Skin: Without performing cultures (viral and bacterial), it is difficult to say with 100% certainty. It would be best to get to a qualified provider who is able to perform a Tzanck smear and that would clinch the diagnosis immediately. Cultures may take days to get results back. ...Read more

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Dr. Heidi Fowler
1,016 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 generally caused by the herpes simplex virus 1 which is related to herpes simplex virus 2 that causes genital herpes. Cold sores are very contagious and can be spread by mouth to mouth contact. They can spread to the genitalia and cause genital ...Read more


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So I have a cold sore on the corner of my mouth and it has been hurting for a few days so i squeezed it and puss stuff came out is this mersa?

So I have a cold sore on the corner of my mouth and it has been hurting for a few days so i squeezed it and puss stuff came out  is this mersa?

Probably not: Its hard to be certain. Cold sores can easily become colonized by normal skin bacteria, which probably caused the pus you saw. The only way to tell if it is MRSA is to get a culture. But if you are otherwise healthy and this is not getting worse, you ought to be able to just ride this out. ...Read more

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I have a cold sore and it comes every three months. What can cause it?

I have a cold sore and it comes every three months. What can cause it?

Virus: Cold sores are cause by the herpes virus, which "hides out" between flares. Physical or emotional stress can trigger a flare. Bright sunlight can trigger a flare. Foods or supplements with the Amino Acid arginine can trigger a flare. Doc can prescribe meds to suppress virus (if frequent or severe flares) or topical med to shorten course of flare. ...Read more

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Can you advise me if having cold sore gone in three days?

Can you advise me if having cold sore gone in three days?

Old sore: Cold sores usually resolve in seven to ten days when no intervention is used. Your physician can prescribe oral Valtrex (valacyclovir) or another antiviral medication. Laser txs are also used to treat 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 w lysine ...Read more

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Does it happen that people get rid of a cold sore in three days?

Sometimes as fast as: 3 to 4 days. Your doctor can prescribe valtrex (valacyclovir). Melissa officinalis or lemon balm (cream) has been shown in european studies to help expedite healing of cold sores. It can reduce healing time by half. Studies also show regular use can help v recurrences. Brief supplementation w lysine 1, 000mg orally 3x a day at onset, can also hasten healing. Your dermatologist can also provide laser treatment. ...Read more

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I had a cold sore for three weeks and I don't know if it's healed yet. It's still a bit red but I'm thinking maybe it's just a scar. Is it contagious?

Not likely: If you had a cold sore and all that remains is some redness, it is probably the result of the inflammation remaining after the cold sore ran its course. If the little white or clear-looking bumps (called vesicles) have dried up and gone, the area is no longer contagious. The virus that causes the cold sore can certainly be spread to others when the vesicles are still present. ...Read more

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I am prone to this cold sores and even have one now about three days ago I noticed a small bump on the left side of my tongue it is not painful I was just wondering if it could be a cold sore spread into my tongue or my health anxiety makes me think it's

Not a cold sore: Cold sores occur on the outside of the mouth/borders of lips, not in the mouth and are caused by the herpes virus. Canker sores, which are not caused by the herpes virus occur in the mouth, and are typically painful. This could just be an enlarged tongue papilla, which is common and not a problem. Have your doctor check it to be sure. ...Read more

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I have had three small pimple like bumps on my bottom lip now for like over a month now with the symptoms of a cold sore but they haven't open or grew?

I have had three small pimple like bumps on my bottom lip now for like over a month now with the symptoms of a cold sore but they haven't open or grew?

Are they painful?: If they are not painful they may be small cysts called milia. They can be removed by your local dermatologist and are not dangerous. Cold sores are painful. ...Read more

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What's wrong if I have a cold sore back to back within three weeks straight. Only grew to like a pimple size and dr have gave prescription two weeks ago?

Herpes simplex: Cold sores are usually due to recurrence of herpes simplex. There is no prescription medication that will shorten the course of this unless taken at the immediate onset. There are numerous otc products that may reduce the discomfort. ...Read more