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Doctor insights on: Fever Blister Not Herpes

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Does herpes always blister?

Does herpes always blister?

No: You may not see the blister stage.It may just be an open sore or even just seem like irritation. ...Read more

Herpes (Definition)

There are different types of herpes infections; herpes simplex infection of mouth (gingivostomatitis) and lips (labialis) are the most common. Others include genital herpes, and herpes zoster. Herpes infection could very mild to very dangerous depending on the type and location of the body affected. I ...Read more


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Fever blisters or herpes simplex 2, what to do?

Fever blisters or herpes simplex 2, what to do?

Topical antiviral: You can apply a topical antiviral--acyclovir. However unfortunately recurrence is still common under stressful situations. ...Read more

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Is a cold sore infectious if it doesn't blister?

Is a cold sore infectious if it doesn't blister?

Yes: A cold sore is infectious in all phases but is most infectious when a scab breaks open & fluid with virus weeps from it. ...Read more

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Are cold sores and fever blisters caused by herpes simplex 1?

Are cold sores and fever blisters caused by herpes simplex 1?

Cold sores - HSV1: Yes - cold sores and fever blisters are the same thing and are most commonly caused by HSV-1. Rarely, HSV-2 can cause oral herpes given the increased practices of oral sex compared with decades ago (i.e. the 1950s). You will note STRESS causes these to come out (for example after a fever from another illness), so best to keep stress levels to an absolute minimum. These are infectious to others BTW ...Read more

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Canker* sores, not cold sores (aka feverblisters)related to herpes simplex type 1, what to do?

Canker* sores, not cold sores (aka feverblisters)related to herpes simplex type 1, what to do?

Herpetic lesions: Canker sores of herpetic origin can be treated palliatively to give relief from the soreness. Abreva is an over-the counter topical gel/medication that you can purchase at your pharmacy that will reduce the length of time that the lesion is active. Your dentist or physician can also prescribe an anti-viral drug (ie. Acyclovir) that can also reduce the length of time and/or onset of appearance. ...Read more

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Can herpes that causes innocent oral fever blisters & cold sores be sexually transited to someone else as genital herpes?

Can herpes that causes innocent oral fever blisters & cold sores be sexually transited to someone else as genital herpes?

Herpes - HSV1 & HSV2: Yes - unfortunately there can be cross over between the 2 different types of herpes. These viruses are always adapting and looking for 'new opportunities' and although traditionally, HSV-1 kept to the mouth/nose and HSV-2 kept to the genital tract, there can be 'back and forth' transmission of these viruses in susceptible patients. This is a reminder to keep ALL safe sex practices in mind! ...Read more

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Follow up: dr. Raff -- you said that canker sores do not cause genital herpes. Are canker sores herpes simplex 1 just like a cold sore?

Follow up:  dr. Raff -- you said that canker sores do not cause genital herpes. Are canker sores herpes simplex 1 just like a cold sore?

Canker sores: Aphthous stomatitis is not due to herpes simplex. Dr. Namey and dr. Perkins have provided excellent advice and would read these carefully. The location of the herpetic lesions (oral v. Genital) no longer is specific for types 1;2. Cold sores may be herpetic, but not canker sores. ...Read more

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How painful are herpes simplex blisters?

How painful are herpes simplex blisters?

Variable: Some patients have virtually no pain and others are in such pain it is difficult to sit or empty the bladder. Seek treatment early to reduce pain and speed healing. ...Read more

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Does genital herpes blisters always break open?

Does genital herpes blisters always break open?

Yes: Genital herpes usually causes blisters on the vulva (around the vaginal opening).They will break open & form ulcers.Usually the infection goes to the uterine cervix(neck of the womb)causing cervicitis. Sometimes infection goes to the urethra(urine channel) causing urethitis with painful urination. ...Read more

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Is it possible to have hsv1 & hsv2 cold sores, but not herpes?

Is it possible to have hsv1 & hsv2 cold sores, but not herpes?

Confusing question: Cold sores can be caused by hsv1 or 2. Both are herpes. If you have not had oral to genital or genital to genital contact with either strain, you may not get "genital herpes". ...Read more

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Do cold sores always from a blister?

Yes: Cold sores are caused by a virus. (herpes simplex1). Eruptions of this virus are vasicular (blister). ...Read more

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Di herpes blisters have pus?

Usually not: Usually the fluid inside a herpes blister is clear. Pus suggests another or an additional infection. ...Read more

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I have herpes zoster, are liquids in the blisters contagious?

Yes!: Herpes zoster, also known as shingles, is a contagious viral infection. It is a reactivation of the varicella virus that causes chickenpox. You would be contagious to someone who who has never had chickenpox before or has never been vaccinated. You should keep the area covered at all times and wash your hands often. Stay clear of pregnant women, infants and immunocompromised people. ...Read more

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Herpes (type 1), it was genital, does this mean i'll get genital sores or just cold sores?

Herpes (type 1), it was genital, does this mean i'll get genital sores or just cold sores?

Hepes type 1: Herpes type 1 usually causes cold sores, or fever blisters, but can cause genital herpes.Usually type 1 virus does not like the genital area and chances of it coming back are much less than type2.But there is still a little cance as you just had it. ...Read more

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Herpes 2 have pus or fluid blisters?

Herpes 2 have pus or fluid blisters?

Herpes: Herpes lesions are typically fluid filled blisters that can look clear or whitish yellow. These will become open sores and then scan over and gradually heal. The process can take 5-14 days. ...Read more

Dr. Philip Miller
1,776 doctors shared insights

Blistering (Definition)

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


Dr. Mark Diamond
2,227 doctors shared insights

Fever (Definition)

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