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Doctor insights on: What Does A Blister In Your Mouth Mean

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A blister in the mouth means I have anything contagious, or not?

A blister in the mouth means I have anything contagious, or not?

Sometimes: There are many conditions which cause blisters in the mouth. Most of them are not contagious. However, one of the most common causes of blisters is from the herpes virus, which is contagious. So, the only way to know for sure is to see a dentist right away. If the blister heals, it won't be possible to know what it was, since it will be gone. You should have it checked now. ...Read more

Mouth (Definition)

Mouth (mouth) " n. Pl. Mouths 1. A. The body opening through which an animal takes in food. B. The cavity lying at the upper end of the alimentary canal, bounded on the outside by the lips and inside by the oropharynx and containing in higher vertebrates the tongue, gums, and teeth. C. This cavity regarded as the source of sounds and speech. D. The opening to any cavity or canal ...Read more


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I have a blister in my mouth on the left side. What can that mean? Im kind of scared

I have a blister in my mouth on the left side. What can that mean?  Im kind of scared

Canker sores: Canker sore is the most common oral lesions. Individual ulcers typically last 1-2 weeks. The dental laser offers immediate relief from the pain of these sores. See your dentist. ...Read more

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What does it mean when my child keep getting clear looking blisters in her mouth, I heard it's a sign of having worms is that true?

What does it mean when my child keep getting clear looking blisters in her mouth, I heard it's a sign of having worms is that true?

Noooo: ive never heard that. Blisters in the mouth especially in kids are usually a result of viral infections. There are several that cause blisters but the cold sore is most common. Also blistering can occur as a result of repeated trauma and allergic reactions. Forget about worms but take your child to the doctor and get this sorted out. ...Read more

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What is blister at roof of mouth by teeth mean?

What is blister at roof of mouth by teeth mean?

See a dentist: It's hard to give an accurate diagnosis, or even a general diagnosis without seeing the blister. Call your dentist to have it looked at, then he can answer your questions. ...Read more

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Help i get blood blisters in my mouth what does it mean?

Help i get blood blisters in my mouth what does it mean?

Accidentally: Biting yourself? Perhaps it's a habit. It's also possible that you have some sharp edges on your teeth that need some smoothing off or repair. Start by consulting with your dentist. ...Read more

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What do little blisters inside my baby’s mouth along with fever and fussiness mean?

What do little blisters inside my baby’s mouth along with fever and fussiness mean?

Mouth virus: There are many viral infections that can cause blisters or ulcerations in the mouth. The vast majority will resolve without prescription medication but they do tend to cause quite a bit of pain. If your child is a newborn, it is wise to see your doctor. Acetaminophen is helpful for pain (or Ibuprofen over 6 months of age). Encourage him to drink lots of fluids to prevent dehydration. ...Read more

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I'm just wondering, if you have cold sores or fever blisters on your mouth, does that mean you have herpes?

Most likely: Cold sores are painful liquid filled blisters that can occur on the lips, roof of the mouth or the gums which are caused by the herpes simplex virus (hsv-1).
An estimated 80% of americans have been exposed to herpes simplex virus type 1. However, not all of those people will get cold sores. It depends on your immune system. ...Read more

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I started drinking whey protien drinks and i started getting blisters around my mouth. Does this mean I have an allergy to whey?

I started drinking whey protien drinks and i started getting blisters around my mouth.   Does this mean I have an allergy to whey?

Allergy: You may have an allergy or food sensitivity or it could be unrelated. I would suggest a different source of protein, pea, rice, or a different brand of whey. ...Read more

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If a blister/ulcer on floor of my mouth doesn't heal after few weeks, does that mean chances of oral cancer are very high?

If a blister/ulcer on floor of my mouth doesn't heal after few weeks, does that mean chances of oral cancer are very high?

No: Don't assume the worst right away. You're right that most oral sores seem to heal within a few weeks, but that's just a general guideline. Make sure you're not doing anything to aggravate healing like frequent rinsing with an alcohol based rinse. I would have the area checked out though to see if it warrants further investigation. ...Read more

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I got a small blood blister on my lip. What does it mean?

Blood blister: Hello, i wouldn't worry too much about a blood blister since they most commonly arise from the trauma of biting the lip. Avoid further trauma and see your doctor for removal. ...Read more

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My mother in law just had some dental work done and now she has a fever blister on her lip. Does this mean she has hsv-1 and is contagious?

Perhaps: If she had a previous history of hsv, then the stress of dental work can lead to a localized breakout. If it is hsv, then yes, she is contagious. Anytime there are active hsv lesions - oral or genital - then one is contagious. It's the fluid within the blister that contains the virus. ...Read more

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What makes salt burn a blister in your mouth?

Irritating: While a dilute salt water rinse can promote healing and comfort, concentrated salt will irritate exposed nerves in an ulcerated wound and really get your attention. ...Read more

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How do you get rid of a blister in your mouth?

How do you get rid of a blister in your mouth?

Depends: It depends on whether the cause is trauma, you burned or hit it with food or your tooth brush or if the cause is an infection. For a trauma time, steroid creams prescribed by your dentist and warm water rinses should take care of the problem for an infection see your dentist. If the cause is an apthous ulcer or herpetic cause, your dentist can help you there as well. ...Read more

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What can you put on a blister in your mouth to relieve pain? Baby orajel?

What can you put on a blister in your mouth to relieve pain? Baby orajel?

Oral blister: Orajel, anbesol, or viscous Lidocaine (prescription item) would all make sense. They tend to help some but are not dramatic cures. If you see a doctor there are certain treatments s/he can try like silver nitrate application or cortisone injection. ...Read more

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Can you tell regular mouth blisters apart from an STD blister in your mouth like herpes?

They are the same: Fever blisters are caused by a herpes virus. There are 2main types that cause us problems, but either type can present as a blistered place anywhere on your body. The most common types are the oral fever blisters. The next are the genital herpetic lesions. Other things however can make blisters so being evaluated by your doctor would help. ...Read more

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How 2 treat blisters in the mouth?

How 2 treat blisters in the mouth?

Mouth blisters: If they are herpes (cold sores), doc can prescribe antiviral med to suppress virus & lessen symptoms. Rinsing mouth with mixture of warm salt water, peroxide, & mouthwash may help. Otc topical pain meds like orajel or anbesol can lessen discomfort. If blisters don't improve within few days, see fp or dentist for evaluation & treatment. ...Read more

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What causes blisters on the mouth?

What causes blisters on the mouth?

Many things: true blisters can be from trauma, viruses, oral medications. It is useful to keep track of what things might trigger the blisters or perhaps see your dermatologist for a definitive diagnosis ...Read more

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What can I do to blisters in the mouth?

What can I do to blisters in the mouth?

Aphthous ulcers: These are common. Change toothpaste to detergent (sodium laureth sulfate) free brand. Avoid spicey, acidic (tomato, citrus)oragel or other topical analgesics. Tylenol, (acetaminophen) aspergum (aspirin gum numbs mouth) . If symptoms persist or are recurrent, get checked by doctor.. If possible, reduce stress in your life. Also, there are over-the-counter products coat the ulcer and can reduce pain. ...Read more

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How do you treat blisters in the mouth ?

How do you treat blisters in the mouth ?

Depends on the cause: The first step is pain control. Most find benefit from avoiding spicy and acidic food and drink. You might also avoid things that are crunchy in favor of soft foods. Some people get benefit from over the counter pain relievers. There are many things that can cause oral blister or ulcers, usually viral infections. However, you should visit your doctor if they arose after you took a new medicine. ...Read more

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How do I figure out what is this blister on my toddlers mouth?

How do I figure out what is this blister on my toddlers mouth?

See a doctor: Blister in the mouth may be caused by a varied number of things from canker sores to viruses. Your child's pediatrician will be able to tell the difference and recommend appropriate management ...Read more

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White blister in the mouth? Hurts only a little bit. What could it be?

White blister in the mouth?  Hurts only a little bit.  What could it be?

Oral Apthous Ulcer: Canker sores (apthous ulcers) are shallow erosions with a white center surrounded by a ring of pink to red inflammation. They can be minimally painful to severely painful. They usually take about 1 week to heal. If they do not heal, have it checked out. There are many causes for blisters/erosions in the oral cavity and differentiating the cause is important for long term treatment decisions. ...Read more

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Why am I getting these blisters in my m my mouth that are white and very painfull?

Why am I getting these blisters in my m my mouth that are white and very painfull?

Herpes: One common cause of painful blisters in the mouth would be herpes simplex or zoster. If this is the first time you've had herpes it's worse than when you get a recurrence. Sometimes other viruses can cause small blisters in the throat. Get it checked by a doctor to find out whether medicine can help. ...Read more

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My son has a form of hfm, he only has blisters in his mouth- very painful, how long does it usually take for the sores to not hurt/go away?

1-7 days.: They usually go away in 1-7 days. A useful treatment is Benadryl (diphenhydramine) suspension and mylanta mixed one to one paint or swish on the lesions. The Benadryl (diphenhydramine) acts as a pain reliever and the mylanta makes it stick. Can do this as often as needed. ...Read more

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My son has a form of hfm, he only has blisters in his mouth- very painful, how long does it usually take for the sores to not hurt/go away?

My son has a form of hfm, he only has blisters in his mouth- very painful, how long does it usually take for the sores to not hurt/go away?

1-7 days.: They usually go away in 1-7 days. A useful treatment is Benadryl (diphenhydramine) suspension and mylanta mixed one to one paint or swish on the lesions. The Benadryl (diphenhydramine) acts as a pain reliever and the mylanta makes it stick. Can do this as often as needed. ...Read more

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My son has a form of hfm, he only has blisters in his mouth- very painful, how long does it usually take for the sores to not hurt/go away?

My son has a form of hfm, he only has blisters in his mouth- very painful, how long does it usually take for the sores to not hurt/go away?

1-7 days.: They usually go away in 1-7 days. A useful treatment is Benadryl (diphenhydramine) suspension and mylanta mixed one to one paint or swish on the lesions. The Benadryl (diphenhydramine) acts as a pain reliever and the mylanta makes it stick. Can do this as often as needed. ...Read more

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My son has a form of hfm, he only has blisters in his mouth- very painful, how long does it usually take for the sores to not hurt/go away?

My son has a form of hfm, he only has blisters in his mouth- very painful, how long does it usually take for the sores to not hurt/go away?

1-7 days.: They usually go away in 1-7 days. A useful treatment is Benadryl (diphenhydramine) suspension and mylanta mixed one to one paint or swish on the lesions. The Benadryl (diphenhydramine) acts as a pain reliever and the mylanta makes it stick. Can do this as often as needed. ...Read more

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My son has a form of hfm, he only has blisters in his mouth- very painful, how long does it usually take for the sores to not hurt/go away?

My son has a form of hfm, he only has blisters in his mouth- very painful, how long does it usually take for the sores to not hurt/go away?

1-7 days.: They usually go away in 1-7 days. A useful treatment is Benadryl (diphenhydramine) suspension and mylanta mixed one to one paint or swish on the lesions. The Benadryl (diphenhydramine) acts as a pain reliever and the mylanta makes it stick. Can do this as often as needed. ...Read more

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My son has a form of hfm, he only has blisters in his mouth- very painful, how long does it usually take for the sores to not hurt/go away?

1-7 days.: They usually go away in 1-7 days. A useful treatment is Benadryl (diphenhydramine) suspension and mylanta mixed one to one paint or swish on the lesions. The Benadryl (diphenhydramine) acts as a pain reliever and the mylanta makes it stick. Can do this as often as needed. ...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