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Doctor insights on: What Are Cold Sores On Lips Caused By

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What are the causes of mouth sores or canker sores?

What are the causes of mouth sores or canker sores?

Various causes...: Food allergies, traumas due to injury borh physical, thermal or chemical. A very common disease is auto immune called lichen planus easily treated after a good diagnosis...Other diseases can cause these problems and should be ruled out... Chuck. ...Read more

Dr. Heidi Fowler
1,058 doctors shared insights

Cold Sore (Definition)

Also referred to as fever blisters, cold sores are small and 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 to the genitals, causing genital ...Read more


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Can cold sores appear on the inside of the inner lip? Or are they canker sores?

Can cold sores appear on the inside of the inner lip? Or are they canker sores?

Possible\unlikely: It is very unusual but possible for cold sores caused by a virus to appear on the inside of the lip, and when they do, it is most common near the insider border of the lip. They appear more often in clusters and as a blister, unlike canker sores (aphthous ulcers) which occur only inside the mouth and usually as a single white ulcer surrounded by a red inflamed border. ...Read more

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Do cold sores on the mouth also cause genital herpes?

Possible: Cold sore is cause by hsv i while genital herpes is usually caused by hsv ii. Could a cold sore cause genital herpes? It would be possible if the sore is actively shedding virus during oral sex. With cold sore, avoid contact until the lesion is healed over. ...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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What are the symptoms of herpes/cold sores/canker sores on your lips/mouth?

What are the symptoms of herpes/cold sores/canker sores on your lips/mouth?

Two different things: Cankers (recurrent aphthous ulcers) are an "auto-immune" type reaction to trauma/stress (such as biting your lip). They occur on the loose membranes of your lips, cheeks and floor of the mouth. Your dentist can treat with prednisone, laser or chemicals to cut pain. Cold sores are hsv. Abreva helps those some, but most need doc rx. Both go away without treatment in 10-14 days (pain only 3-5 days). ...Read more

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Can blistering on the lips be caused by something other than herpes simplex?

Can blistering on the lips be caused by something other than herpes simplex?

Lip blisters: It can be caused by excess heat such as food or the sun. If it persists i would have it checked by a doctor. ...Read more

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Are cold sores and sores inside the mouth related or the same thing?

Are cold sores and sores inside the mouth related or the same thing?

Not the same : recurrent aphthous ulcers and other ulcers in the mouth are not the same. Causes of ulcers are many: Viral infections, particularly herpes simplex and herpes zoster Other infectious agents (Candida albicans and bacteria) Trauma Tobacco or irritating foods or chemicals Chemotherapy and radiation therapy. Cause of Aphthous ulcers is unclear. Diagnosis is clinical. Treatment is symptomatic. ...Read more

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What causes cold sores and fever blisters in the mouth and lips?

What causes cold sores and fever blisters in the mouth and lips?

Virus: Cold sores are caused by the herpes virus and is a very common infection to get. It is estimated that 90+% of population has been exposed to this virus in childhood. Usually it is triggered by stress, lack of sleep, excess sunlight etc.. Sometimes people get them recurrently or once in awhile or sometimes once then never again. It depends but can be treated by Acyclovir and related drugs too. ...Read more

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Cold sores on lips is same you can get on genital?

Cold sores on lips is same you can get on genital?

HSV1 and HSV2: There are two types of herpes simplex virus (HSV), cleverly called types 1 and 2. HSV1 causes almost all oral herpes (cold sores), but also causes many genital herpes infections. HSV2 causes most genital herpes. Genital herpes with HSV1 causes similar symptoms as HSV2, but less frequent outbreaks and uncommon sexual transmission to partners. ...Read more

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Sores along inside of lower lip, not cold sores, what are they?

Sores along inside of lower lip, not cold sores, what are they?

Need an exam : Without an exam, it is impossible to comment. Could be infection, inflammation, trauma, cancer, cysts, normal variations--just about anything. ...Read more

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What conditions in baby are caused by the herps simplex virus?

What conditions in baby are caused by the herps simplex virus?

Local/general/brain: Herpes simplex is a devastating infection in babies. The virus can enter from the birth canal & fetal membranes or be acquired during delivery. Skin sores may appear within days, or baby can circulate the germ as a blood poisoning & it ends up invading the brain & other tissues.Even aggressive treatment may not prevent the virus from creating swiss cheese like destruction of brain tissue. ...Read more

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Could cold sores appear on the tongue?

It is possible: First HSV infection may be inside the mouth, but cold sores generally appear outside the mouth on the lips. ...Read more

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Can having hsv-1 cause blisters on feet? one foot? or are the blisters caused by my shoes?

Can having hsv-1 cause blisters on feet? one foot? or are the blisters caused by my shoes?

Not herpes: Although it is possible to get herpes lesions on other parts of the body (called herpes gladiatorum), it is rare and is v. unlikely in your case. Most probably you're body is reacting to the ill-fitting shoes. I would definitely stop wearing the shoes entirely and try to minimize any activity that makes the feet hurt. You need to rest and recover first. Keep off the feet and protect the blisters. ...Read more

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Do you know are cold sores on the lip or mouth the same as herpes simplex ii?

Do you know are cold sores on the lip or mouth the same as herpes simplex ii?

Cold sores have : Most often associated with herpes simplex 1 but herpes simplex 2 can also cause it. ...Read more

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Do you know are chickenpox and cold sores caused by different strains of the herpes virus?

Do you know are chickenpox and cold sores caused by different strains of the herpes virus?

Herpes Viruses: There are three herpes viruses. The common chicken pox is caused by a cousin to the other two "herpes' viruses. Chicken pox can now be prevented by the childhood varicella vaccination and hopefully with time we will see this eradicated. There are two herpes viruses. Herpes type one is found on or near the mouth more than 90% of the time. Herpes two is found near the genitals 95% of the time. ...Read more

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Can cold sores be normal or are cold sores linked to the herpes virus. Meaning can someone have cold sores but my have the virus?

Can cold sores be normal or are cold sores linked to the herpes virus. Meaning can someone have cold sores but my have the virus?

Cold sores = HSV-1: True cold sores are caused by the herpes hsv-1 virus. For more information go to: http://www.Mayoclinic.Com/health/cold-sore/ds00358. ...Read more

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What usually causes cold sores in the mouth?

What usually causes cold sores in the mouth?

Cold sores: Most cold sores are called aphthous ulcers. They are caused by a virus that the majority of the population has. There is no cure, it usually lays dormant in the nerve endings and erupts in an incident after stress, trauma or external stimulants. They usually last 7-10 days and there are meds that can lessen the duration and intensity. Herpes is another possibility. See a dentist to have evaluated. ...Read more

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What causes cold sores in mouth?

Herpes virus: Typically precced by some type of trauma, bite lip, taco chip scrape etc. ...Read more

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I learned cold sores are caused by herpes. Is it the same forms as genital herpes?

I learned cold sores are caused by herpes.  Is it the same forms as genital herpes?

Can be type 1 or 2: Cold sores on or near the lips are due to recurrence of herpes type 1 or 2. Herpes viruses, after the initial infection, live in a person's nerves and travel down the nerves to the surface to form blisters that break open, spreading more virus. Type 1 is more common on the lips, and type 2 more common on the genitals. With people engaging in oral sex, either type can be in one or both locations. ...Read more

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