How To Get Rid Of Cold Sores In Your Mouth

• What Is It?
  • What are canker sores?
• 3 Types
  • What are three types of canker sores?
• Causes
  • What causes canker sores?
• vs. Cold Sores
  • Are canker sores the same thing as cold sores (fever blisters)?
• Symptoms
  • What are signs and symptoms of canker sores?
• 14 Home Remedies
  • What 14 natural or home remedies cure canker sores?
• Medications
  • What topical prescription and over-the-counter (OTC) medications cure canker sores?
  • What oral medications are available to cure canker sores?
• Treatment
  • What mouthwash solutions be used to treat and cure canker sores?
• Recurrent Canker Sores
  • What should a person do if they get recurrent or chronic canker sores?
• Doctor's Perspective
  • Do I have a cold sore or canker sore?
  • How do I get rid of a cold sore overnight?
• Center
  • Canker Sores Center
• Comments
  • Patient Comments: Canker Sores - Effective Treatments
  • Patient Comments: Canker Sores - Symptoms
  • Patient Comments: Canker Sores - Topical Medications
  • Patient Comments: Canker Sores - Oral Medications
  • Patient Comments: Canker Sores - Experience

Canker sores are small, painful ulcers inside the mouth. Source: iStock

What are canker sores?

Canker sores (aphthous ulcers or aphthous stomatitis) are small, painful ulcers inside the mouth. They may occur on the tongue and on the inside linings of the cheeks, lips, and throat. They usually appear white, gray, or yellow in color, with a red border.

• Canker sores are among the most common types of oral lesions, affecting about 20% of people.
• Women get canker sores more often than men.
• Canker sore susceptibility may be inherited, and the condition can run in families.

Canker Sore Symptoms & Signs

Some people may experience the following related canker sore symptoms and signs:

• Bleeding gums
• Lump or mass on gums
• Painful gums

Canker sores are not contagious and are categorized into three types Source: iStock

What are three types of canker sores?

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Canker sores are not the same as cold sores (fever blisters), which are an infection caused by the herpes virus and are contagious. Canker sores are not contagious, and are categorized into three types:

1. Minor sores measure from 3 to 10 millimeters (mm) and are the most common type of canker sore. Lesions last 10 to 14 days and heal without scarring.
2. Major sores are larger and deeper than minor sores, have an irregular border, and a diameter of greater than 10 mm. Major canker sores may take weeks to months to heal and can leave a scar after healing.
3. Herpetiform sores are characterized by large groups of multiple sores. These are small ulcers (2-3 mm) but there may be as many as 100 ulcers present at the same time. They tend to heal without scarring.

Some possible causes of canker sores include the following injury to the mouth may cause simple canker sores. An injury could be from vigorous tooth brushing, dental work, braces or dentures, or a sports accident. Source: Getty Images

What causes canker sores?

The cause of most canker sores is not well understood, and multiple factors may cause sores to appear. Some possible causes of canker sores include the following:

• Injury to the mouth may cause simple canker sores. The injury could be from vigorous tooth brushing, dental work, braces or dentures, or a sports accident.
• Acidic foods, including citrus fruits, may trigger a canker sore or make it worse.
• Food sensitivities or allergies (anything from highly acidic foods to chocolate and coffee)
• Diets low in vitamins B12, zinc, folate (folic acid), or iron
• Toothpaste containing sodium lauryl sulfate
• Allergy to certain bacteria in the mouth
• Hormones
• Emotional stress
• Smoking
• Gastrointestinal tract diseases such as Celiac disease or Crohn's disease
• Autoimmune disorders such as systemic lupus erythematosus or Behçet's disease
• Other immune system weaknesses such as a cold or the flu, HIV/AIDS, or an organ transplant
• Systemic conditions such as Crohn's disease or nutritional deficiencies
• Oral cancer
• Certain drugs may cause canker sores, including:
  • Aspirin
  • Nonsteroidal anti-inflammatory drugs (NSAIDs)
  • Beta-blockers
  • Oral nicotine
  • Chemotherapy medicines
  • Immunosuppressants
  • Penicillamine
  • Sulfa drugs
  • Phenytoin
  • Anticholinergic bronchodilators
  • Platelet aggregation inhibitors
  • Vasodilators
  • Protease inhibitors
  • Antibiotics
  • Antiretrovirals
  • Antihypertensives

Canker sores are not the same thing as fever blisters (cold sores). Source: iStock

Are canker sores the same thing as cold sores (fever blisters)?

No, canker sores are not the same thing as cold sores (fever blisters).

• Canker sores occur inside the mouth and are not contagious.
• Fever blisters are infections caused by the herpes simplex virus (HSV), they mostly occur on the lips and outside of the mouth, and they are very contagious.

SLIDESHOW

Cold Sores Causes, Remedies, & Diagnosis See Slideshow

Common symptoms of canker sores include burning, tingling, or prickling sensation, soreness, ulcers, and difficulty speaking, eating, or swallowing. Source: iStock

What are signs and symptoms of canker sores?

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Canker sores are painful sores inside the mouth. They may occur on the tongue, the lining of the cheeks, the gums, the inside of the lips, or the soft palate on the back of the roof of your mouth. Common symptoms of canker sores include the following:

• A burning, tingling, or prickling sensation, up to 24 hours before the sore appears
• Crater-like ulcers that are white, gray, or yellow in color, with a red border
• Sores are usually painful
• Difficulty speaking, eating or swallowing

Less common symptoms that can also indicate a more serious underlying infection include:

• Fever
• Swollen lymph nodes
• Sluggishness
• Weight loss
• Thrush infection in your mouth or throat

Contact your doctor or dentist if your canker sores are

• Larger than usual
• Spreading
• Lasting more than three weeks
• Causing severe pain even after taking over-the-counter pain medication
• Causing difficulty drinking enough fluids to stay hydrated
• Accompanied by fever

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14 Home remedies can relieve the pain or irritation caused by the sore and heal faster. Source: Getty Images

What 14 natural or home remedies cure canker sores?

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In most cases, canker sores do not require any treatment, and there is nothing specific you need to do to get rid of a canker sore because it usually will heal on its own. Home remedies can be used to help relieve the pain and inflammation of canker sores.

If you already have a canker sore, there are home remedies that can be used to help relieve the pain or irritation caused by the sore and to speed healing:

1. Topical medications applied directly on the sore, mouthwashes, and oral medications can relieve pain or inflammation.
2. Allow ice chips to dissolve slowly in your mouth for relief of pain.
3. Avoid acidic foods such as citrus fruits or spicy foods that may aggravate the sore.
4. If there is any vitamin deficiency (a doctor can test for this), take supplementation as prescribed.
5. Brush teeth gently and use a brush with soft bristles.
6. Use toothpaste and mouthwash that does not contain sodium lauryl sulfate.
7. Another home remedy is to mix milk of magnesia with Benadryl liquid and use it as a mouth rinse. You can also dab milk of magnesia directly onto the canker sore with a cotton swab.
8. Rinse your mouth with saltwater or baking soda rinse. Mix 1 teaspoon of baking soda per ½ cup water, and rinse.
9. Other natural remedies include goldenseal mouth rinse, deglycyrrhizinated licorice (DGL) gargled in warm water, and saltwater rinses.
10. Zinc lozenges may help provide relief and speed healing time. Do not give lozenges to young children, as they may be a choking risk.
11. Vitamin C, vitamin B complex, and lysine can be taken orally when lesions first appear and may help speed healing.
12. Infuse sage and chamomile herbs in water and use as a mouthwash four to six times daily.
13. The herb Echinacea may help speed healing
14. Carrot, celery, and cantaloupe juices may also be helpful.

Consult a health care professional before using any home remedy as many have not been scientifically tested or proven effective.

IMAGES

Canker Sores (Causes, Home Remedies, Treatment, and Prevention) See a pictures of canker sores and cold sores as well as other oral health conditions See Images

OTC medications can cure canker sores Source: iStock

What topical prescription and over-the-counter (OTC) medications cure canker sores?

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Topical gels or ointments are used for canker sores to relieve pain, decrease inflammation, and prevent infection.

• Topical pain medications: Gels such as benzocaine (Orajel, Orabase) and lidocaine (an anesthetic) are used directly on the canker sore to relieve pain or discomfort. Canker sore patches (Canker Cover) provide pain relief while covering and protecting the sore as it heals. These types of medications can be found over the counter.
  Topical anti-inflammatory medications: Steroid medications such as triamcinolone acetonide or fluocinonide can be used topically to decrease inflammation from canker sores. These medications usually require a prescription and should be used exactly as your doctor or other health care professional has instructed.
• Topical antibiotics: These medications may be prescribed by your doctor or dentist if there is a possibility of the canker sore becoming infected with bacteria. Redness, crusting, pus discharge, or fever are signs of infection.

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Several mouthwash solutions may be used to treat canker sore symptoms. Source: Getty Images

What mouthwash solutions be used to treat and cure canker sores?

Several mouthwash solutions may be used to treat canker sore symptoms, and include:

• Diphenhydramine suspension (Benadryl Allergy liquid) is available over the counter and can be used as a mouth rinse because it has topical anesthetic effects on the tissue of the mouth and the canker sore. Put the suspension in your mouth, swish it around for 30 seconds to one minute, and spit it out. Do not swallow the rinse.
• Anti-inflammatory steroid mouth rinses may be prescribed to help reduce inflammation of the sores.
• Tetracycline antibiotic rinses may be prescribed and have been shown to relieve the pain and promote the healing of canker sores. Do not use tetracycline if you are pregnant, people allergic to tetracycline, or if the person with the canker sore is a child under 16 years of age.

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Predisposition to canker sores may just be genetic. Source: iStock

What should a person do if they get recurrent or chronic canker sores?

• If a person suffers from frequent canker sores, there may be an underlying medical reason or illness that causes them. See a health care professional or dentist if there are any concerns that canker sores are frequent.
• Predisposition to canker sores may just be genetic. However, some diseases that affect the immune system such as lupus, Crohn's disease, celiac disease, or HIV/AIDS may cause frequent or recurrent canker sores.
• Health care professionals can order tests to determine if there is an underlying medical reason for a person's frequent canker sores.

From

Cold sores/fever blisters: These are caused by a type of infection and they are very contagious and quite painful. Canker sores: These are a type of mouth ulcer and may be relatively small. Source: iStock

Do I have a cold sore or canker sore?

Medical Author: Karthik Kumar, MBBS

Medical Reviewer: Pallavi Suyog Uttekar, MD

Having a cold sore or canker sore is painful and differentiating them isn't always easy. However, a cold sore isn't the same as a canker sore. The simplest way to differentiate between cold sores and canker sores is by location. Cold sores are usually on the outside of the mouth, typically directly on the lips, whereas canker sores are always on the inside of the mouth.

• Cold sores/fever blisters: These are caused by a type of infection and they are very contagious and quite painful. They usually start as tiny blisters clustered together that break and create a sore. The early blisters are red and full of fluid. Eventually, these have a crusted appearance. Cold sores develop on the outside of the lips but may also appear on the gums, tongue, and/or on the roof of the mouth.
• Canker sores: These are a type of mouth ulcer and may be relatively small. They have a red border and a white or yellow center. These are usually found on soft parts of the mouth such as the inner cheeks, inner lips, or at the base of your gums.

What should I know about cold sores?

Cold sores are usually caused by the herpes virus and it is highly contagious.

Symptoms of cold sores include

• High fever
• Difficulty swallowing
• General soreness in the mouth
• Swollen glands and fatigue (during a first cold sore outbreak)

Lesions are commonly preceded by an itching, burning, or tingling sensation. The lesions are often painful and can come back regularly. They might be triggered by exposure to sunlight, local injury, allergies, stress, hormonal changes, or an illness such as a bout of fever or flu. The infection usually heals within 7 to 10 days.

Treatment of cold sores

There is no cure available for the herpes virus; however, symptoms may be treated

• Applying over-the-counter topical antiviral ointments and creams may shorten the healing process. A dab of cortisone cream may also help reduce swelling.
• Applying ice to the cold sore after it has appeared on the mouth can numb the area and lessen the pain as well.
• In rare cases, doctors may also prescribe oral antiviral medication to manage outbreaks of cold sores, especially if the patient has other health conditions, such as cancer, human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS), or an autoimmune disorder. These medications include famciclovir, acyclovir, and valacyclovir.
• Cold sores usually go away within 10 days. However, it is recommended to avoid kissing or sharing drinks with anyone during an outbreak because the herpes virus is most easily transmitted.

What should I know about canker sores?

Canker sores are mouth ulcers that are not contagious. They are autoimmune. Some may be due to repeated trauma to the lining of the mouth. For example, biting the inside of our cheek could wind up as a canker sore because the body tries to heal the wound. You may be likely to bite the same spot inside your mouth several times making the canker sore more severe.

Symptoms of canker sores include

• Severe pain in the mouth and one or more sores on the mouth.
• Sores are usually small and rarely become large. They bleed easily, usually while brushing their teeth.
• They usually last for 14 to 18 days.
• They are usually associated with physical or emotional stress, become painful, and commonly come back in multiple areas.
• They are triggered due to vitamin deficiency, injury, infection, spicy foods, poor diet, hormone fluctuations, and even allergies.
• Very rarely, canker sores are caused by a viral infection that includes fever as a symptom.

Treatment of canker sores

Canker sores are not easy to treat

• They usually heal with over-the-counter pain medication or a numbing topical gel to treat the pain (benzocaine or hydrogen peroxide). Sometimes, doctors may even prescribe oral steroids to treat canker sores.
• Gargling with warm salt water or a solution of baking soda and water can shorten healing time and reduce pain as well.
• Using ice or honey may also numb the pain.
• Canker sores usually go away within 10 days, but if they last more than 14 days immediate medical attention may be required.
• Staying away from highly acidic or spicy foods and eating a diet rich in vitamins and nutrients may prevent a recurrence.
• Sometimes, a toothpaste with sodium lauryl sulfate may trigger canker sores; trying a toothpaste without sodium lauryl sulfate may prevent a recurrence.

Cold sores/fever blisters are caused by a type of infection and they are very contagious and quite painful. Source: iStock

How do I get rid of a cold sore overnight?

 Medical Author: Shaziya Allarakha, MD

Medical Reviewer: Pallavi Suyog Uttekar, MD

You cannot get rid of cold sores overnight. There is no cure for cold sores. However, to speed up the healing time of a cold sore, you can consult with your doctor and take prescription medications such as antiviral tablets and creams. A cold sore may go away without treatment within a week or two.

The following tips can help you get rid of cold sores faster

• Pain and fever can be treated with over-the-counter (OTC) painkillers such as paracetamol and ibuprofen. Avoid ibuprofen if you have asthma or stomach ulcers or you had them in the past. Aspirin should not be given to children under 16 years of age.
• Antiviral creams such as acyclovir, valacyclovir, famciclovir, or penciclovir may help to speed up healing. You may get cold sore cream from pharmacies over-the-counter without a prescription. Do not share your cold sore cream. These creams are most effective in the initial stages of the cold sore when you begin to feel a tingling or itching sensation. Creams may not be beneficial when frank rashes appear. You may need to regularly apply the cream five times a day for five to six days.
• Antiviral tablets may be taken in severe cases if you have a doctor's prescription.
• Cold sore patches contain a special gel hydrocolloid. They can be placed over the cold sore to cover the sore area while it heals.
• Avoid triggers such as stress, sunlight, wind, and exertion.
• Stay hydrated by drinking plenty of fluids.
• Antiseptic mouthwashes may help if brushing your teeth is painful.
• Avoid acidic or salty foods such as fried and grilled foods, soda, meat, and sugary foods and drinks.
• Eat cool and soft foods.
• Don't rub the affected part while applying the cream. Instead, gently dab the cream onto cold sores.
• Wash your hands before and after applying the cream to the sores.
• Avoid touching the sores.
• Use sunscreen and sunblock lip balm.
• Do not kiss anybody while you have a cold sore. Kissing babies while you have a cold sore may cause cold sores in babies, which is a dangerous condition called neonatal herpes.
• Do not share your creams, towels, cutlery, or cosmetics when you have a cold sore.

You must consult your doctor right away if you have cold sores and

• They do not heal within 10 days.
• You are pregnant.
• You have compromised immunity due to diabetes, chemotherapy, or human immunodeficiency virus (HIV).

What are cold sores?

Cold sores or fever blisters are small painful blisters that can appear around the mouth, face, or nose. They are commonly caused by viral infections such as herpes simplex virus type 1 (HSV 1) and less commonly by herpes simplex virus type 2 (HSV 2). Cold sores are quite common and they usually subside on their own within a week or two. They start as blisters on the lips and around the mouth. They may also occur inside the mouth. The blisters progress to form painful sores. The fluid-filled blisters slowly crust over and form a scab before they go away. Cold sores may go away without treatment within a week or two. There is no cure for cold sores. However, to speed up the healing time of a cold sore, you can consult with your doctor and take prescription medications such as antiviral tablets and creams.

What are the symptoms of cold sores?

The symptoms are usually more severe during the first outbreak when someone develops a cold sore. Symptoms of cold sores include

• Tingling, itching, and/or burning sensations are felt on or around the lips.
• Slowly the blisters appear and make the affected part red, swollen, and painful.
• In the following two to three days, the blisters rupture. The ruptured blisters ooze fluid that may be clear or yellowish. This phase of oozing fluid is called the "weeping phase."
• During the next four to five days after the cold sore develops, it crusts and scabs over. The skin may crack or bleed as it heals.
• Ultimately, the scab falls off. The skin underneath may be a little more pink or reddish than usual for a few days.
• There may be other symptoms such as fever, a sore throat, and body aches.

Medically Reviewed on 11/19/2021

References

Femiano, F., Lanza, Alessandro, et al. "Guidelines for Diagnosis and Management of Aphthous and Stomatitis." The Pediatric Infectious Disease Journal 26 August 2007: 728-732.

PubMedHealth.gov. Canker Sore.

University of Maryland Medical Center. Goldenseal.

University of Maryland Medical Center. Licorice.

WebMD.com. Canker Sores.

WebMD.com. Understanding Canker Sore Symptoms.

How To Get Rid Of Cold Sores In Your Mouth

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