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Doctor insights on: How To Stop A Fever Blister From Forming

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2 yr old has HFMD. Started fri/sat. When will he stop being contagious? Fever gone, still has blisters on Wed. Ok for family event Saturday?

2 yr old has HFMD. Started fri/sat. When will he stop being contagious? Fever gone, still has blisters on Wed. Ok for family event Saturday?

Hard to say: At 2, their general activities include mouthing toys and fingers and spreading saliva around their environment. Since HFV viruses can shed in the respiratory tract and saliva for 1-2 weeks after initial symptoms, so how and when they stop spreading the germ is difficult to say. It can persist for 4-6 weeks in the stool. ...Read more

Dr. Philip Miller
1,737 doctors shared insights

Blistering (Definition)

A blister is a collection of fluid under the epidermis. A blistering rash is one in which ...Read more


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I thought I had a fever blister forming on my lip. I applied campo phenique to the area. My lip doubled in size. What should I do?

Stop Campho-phenique: Stop campho-phenique you are probably allergic to it, apply ice to swollen lip for no more than 15 min at a time, take benadryl, (diphenhydramine) if lip continues to swell or any shortness of breath starts go to er immediately. ...Read more

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Is there anything to stop the spread of genital herpes after finding out that the partner had fever blisters?

Is there anything to stop the spread of genital herpes after finding out that the partner had fever blisters?

Confused: Fever blisters are usually referred to herpes labialis (cold sores, caused by hsv, type 1 virus), which is not genital herpes (caused by hsv, type 2 virus). Occasionally HSV 1 virus may be transferred during oral sex to the genitals of the partner of the infected individual, but this is not very common. The best way to prevent spread is to avoid direct contact with the infected body part. ...Read more

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What should I do to stop ulcers in my mouth and fever blisters on my lips?

What should I do to stop ulcers in my mouth and fever blisters on my lips?

Lysine: You can try adding lysine supplements to your diet and see if that helps. If it doesn't then you may need to try abreva, or get a prescription from your doctor or an oral surgeon for an anti-viral. ...Read more

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I have a small bump on my upper lip. I noticed it 2 or 3 days ago. It doesn't hurt, burn or itch. Could this be a fever blister or a cold sore forming?

I have a small bump on my upper lip. I noticed it 2 or 3 days ago. It doesn't hurt, burn or itch. Could this be a fever blister or a cold sore forming?

Yes: Could also be ony of literally hundreds of other reasons for a "bump" on your lip. Can't be evaluated in this forum. Call a Pro, your Dentist, for an accurate answer. ...Read more

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What can I put on fever blister?

What can I put on fever blister?

Otc recs: A fever blister, assuming this is the correct diagnosis, is often confirmed by a culture showing herpes simplex virus. It tends to recur in the same location with excess stress and too much sun. Oral rx medications started early work best. Otc options include abreva topically and l-lysine which is a natural remedy. There are some reports of tea tree oil working but a lot of people get irritat. ...Read more

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How do I cure a bad fever blister?

How do I cure a bad fever blister?

Fever blisters: This is generally an outbreak of herpes simplex in the mouth on the lips or other areas of the mucous membranes. This can be treated with oral Acyclovir (suggest not using the topical applications because of risk of resistance and lack of efficacy in changing the course of disease), but generally only lasts 7-10 days. There are also topical anesthetics which can help with the discomfort. ...Read more

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How to get a fever blister healed?

How to get a fever blister healed?

Tincture of time: Lesions run their course over about 5 days or so. Early treatment with antivirals can shorten the course. Some docs use laser therapy which may also shorten the course. ...Read more

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What foes a fever blister feel like?

What foes a fever blister feel like?

Cold Sore: Tingling &/or pain can herald the oncoming of cold sore 1 to 2 days prior to eruption. ...Read more

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What's best to use on fever blister?

What's best to use on fever blister?

Acyclovir: You can ask your doctor for a prescription cream for Acyclovir to treat the skin lesions, if they erupted less than 48 hours ago, otherwise, they are going to take their course. You may need to treat the next outbreak early to prevent them from spreading. ...Read more

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What are good home remediesfor a fever blister?

Fever blister: Try l-lysine (an amino acid), otc cortisone cream, and abreva. ...Read more

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How to cure a fever blister in less than 2 days?

How to cure a fever blister in less than 2 days?

Fever blister: Try Abreva OTC, but may take longer than 2 days. ...Read more

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What's an effective treament for a fever blister?

What's an effective treament for a fever blister?

Remedies: 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 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. ...Read more

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What to do if I have fever blister, please help me?

What to do if I have fever blister, please help me?

Nothing: It will heal in a week or 2. Prescription acyclovir or valacyclovir pills are effective if given at once. After a few hours it does not matter what you do. OTC and prescription creams are not worth the money. Some people have them several times a year so they learn to carry this med to take at very first start of next attack. Then it is usually very effective. I like Valacyclovir 1 Gram tabs to ta ...Read more

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Can you tell me how to relief or hide fever blister?

Can you tell me how to relief or hide fever blister?

Cold sores: Fever blister or cold sores is caused by HSV-1 infection. Your doctor can prescribe anti-herpes medication which can get rid of the blisters in few days. ...Read more

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Please suggest what foods to avoid with a fever blister?

Please suggest what foods to avoid with a fever blister?

Spicy and acidic: It is best to limit your diet to bland foods. Avoid spicy foods and foods that are too hot(temp) also avoid acidic foods like citrus fruit and juice and also apply abreva to the cold sore per directions. ...Read more

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Is there a way to find out why did I get a fever blister?

Is there a way to find out why did I get a fever blister?

See your dentist /MD: Cold sores or fever blisters tend to develop when an individual has a fever but can also be triggered by sun exposure, emotional distress, intestinal illness and menstruation. These blisters can recur in the same spot or in different locations. A sore or blister will typically take a few days or a week to resolve. Caused by herpes simplex i virus and are highly contagious. ...Read more

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What antibodic is good for fever blister?

None: A true fever blister is caused by the herpes virus. Antibiotics to not kill viruses, only bacteria. An anti viral drug may help, but overall it just will heal in 10-14 days. ...Read more

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Need help with fever blisters?

Need help with fever blisters?

Cold Sores: Cold sores can be treated with oral antiviral medications. These are cheap and usually quite safe. They can significantly shorten the duration of the cold sore outbreak. If you have frequent outbreaks, these medicines can be taken daily to suppress the outbreaks. ...Read more

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What to do about fever blisters?

Your doctor can: Prescribe valtrex (valacyclovir). Melissa Officinalis or lemon balm (cream) has been shown in European studies to help expedite cold sore healing. It can reduce healing time by 1/2. Studies also show regular use can help v recurrences. Brief supplementation w lysine 1,000mg orally 3x a day at the onset, can hasten healing. Your dermatologist can provide laser treatments. ...Read more

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What can u do for fever blisters?

Usually endure!: These are a nuisance. There are topicals to put on them that are over the counter. Your pcp can prescribe topicals and oral medications to treat and help prevent them. These meds are usually anti-virals. They are known to recur and painful, itchy, unsightly and can become problematic. If it is more than a simple case, see your pcp and discuss. Google a reputable website for more information. ...Read more

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Where do fever blisters come from?

Where do fever blisters come from?

Fever blisters are…: …caused by the herpes simplex virus (usually type 1, but can also be type 2) which is transmitted by contact with an infected person. Lesions don't even have to be visible to transfer virus. Never cured, it hides out in the body until triggered by stress—cold/infxn/ emotional stress/ bright sunlight/etc. Doc can rx meds to suppress virus & shorten course of symptoms. ...Read more

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What causes rid of a fever blister fast?

Fever blister.: Your physician 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 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. ...Read more

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Can I use Neosporin on a fever blister?

Can I use Neosporin on a fever blister?

Yes but...: But other than make it moist not do much. There are over the counter preparations that are available but they are symptomatic treatment only. Prescription creams do not do much either...just time they go away. ...Read more

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Could you tell me what are fever blisters?

Could you tell me what are fever blisters?

Herpes simplex 1 vir: Cold sores or fever blisters tend to develop when an individual has a fever but can also be triggered by sun exposure, emotional distress, intestinal illness and menstruation. These blisters can recur in the same spot or in different locations. A sore or blister will typically take a few days or a week to resolve. Caused by herpes simplex i virus and are highly contagious. ...Read more

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What causes rid of a fever blister in 1 day?

What causes rid of a fever blister in 1 day?

No way known: I know of no way to do that. Melissa officinalis or lemon balm (cream) has been shown in european studies to help expedite healing of cold sores. Healing time can sometimes be cut in half. But one day — no way. ...Read more

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How to make fever blister after bad cold go away?

Resolve quicker: 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 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 valtrex (valacyclovir). ...Read more

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Can you get a fever blister without having herpes?

No: A fever blister or cold sore is caused by the herpes simplex virus. You may have a light outbreak but the cause is the same. ...Read more

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What can cause fever blisters without having a fever?

What can cause fever blisters without having a fever?

Cold Sores?: Triggers for cold sores can include illness, stress, fatigue, becoming physically cold, dry air, UV rays (sun), mouth trauma or one's period. ...Read more

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How would you recommend I cure my fever blisters, fast?

How would you recommend I cure my fever blisters, fast?

Lemon balm: Melissa officinalis or lemon balm (cream) has been shown in european studies to help expedite healing of cold sores. ...Read more

Dr. Mark Diamond
2,227 doctors shared insights

Fever (Definition)

Fever = elevated body temperature (can be ...Read more