What Are Mouth Sores?
Mouth sores, also known as canker sores or oral ulcers, are small, painful lesions that appear on the oral mucosa. These lesions can interfere with daily activities such as eating, speaking, or even drinking liquids, causing significant discomfort. Among their most common causes are stress, vitamin deficiencies such as B12, minor injuries like biting the inside of the cheek, or allergies to certain foods. Additionally, consuming acidic or spicy foods can worsen the lesions. In some cases, they may be related to immune system issues.
Possible Causes of Mouth Sores
Mouth sores can have multiple causes, some of the most common include:
- Nutritional Deficiencies: A lack of iron, folic acid, or vitamin B12 can trigger mouth ulcers.
- Minor Injuries: Such as biting your cheek or using dental appliances that irritate the mucosa.
- Stress and Anxiety: These factors affect the immune system, making it more susceptible.
- Allergic Reactions: To certain foods or dental products.
- Underlying Medical Conditions: Diseases like celiac disease, Behçet’s syndrome, or Crohn’s disease may be related.
Identifying the specific cause can help you prevent future episodes and receive appropriate treatment.
Risk Factors
Anyone can develop mouth sores, but there are certain factors that increase the risk:
- A weakened immune system.
- Excessive consumption of tobacco or alcohol.
- Use of poorly fitted dental appliances.
- Lack of a balanced diet.
If you belong to any of these groups, take additional preventive measures
to minimize the occurrence of these discomforts.
Symptoms of Mouth Sores
Mouth sores often present with intense pain and discomfort when speaking,
chewing, or consuming hot foods. These lesions typically appear as rounded ulcers,
white or yellow in color, surrounded by a reddish halo indicating inflammation.
Other symptoms include a burning sensation before the lesion appears and, in more
severe cases, fever or swollen lymph nodes. If the sores persist for more than two
weeks, it is important to consult a doctor to rule out more serious complications.
Home Remedies to Heal Mouth Sores
Among the most effective home remedies for treating mouth sores is rinsing with warm salt water. This natural method helps disinfect the area and speeds up the healing process. To prepare it, mix a teaspoon of salt in a glass of warm water and rinse for 30 seconds. Another popular remedy is the use of baking soda. Make a paste with baking soda and a little water, and apply it directly to the sore. This helps neutralize acidity and reduces inflammation. You can also use aloe vera, known for its regenerative and soothing properties, by applying it directly to the affected area.
How to Heal Mouth Sores Quickly?
To heal mouth sores quickly, it is essential to avoid irritating foods such as citrus fruits, tomatoes, or very salty foods, as they can worsen the lesion. Opt for soft and fresh foods that do not cause additional discomfort. Using antiseptic mouthwashes, available at pharmacies, can be key to preventing infections and relieving pain. Additionally, it is important to maintain excellent oral hygiene by using a soft toothbrush and complementing it with dental floss and mouthwash.
Medical Treatments for Mouth Sores
In cases of persistent or particularly painful sores, medical treatments are an effective option. Topical ointments containing corticosteroids help reduce inflammation and pain. These products should be applied directly to the sore as per the doctor’s instructions. If the sores are recurrent, the specialist might recommend vitamin supplements such as vitamin B12 or iron. It is also common to use prescribed mouthwashes with local anesthetics to provide immediate relief and facilitate healing.
Tips for Managing Pain While Healing
During the healing process, you can reduce pain by following these practical tips:
- Use straws: To avoid direct contact with the sore when drinking liquids.
- Opt for cold foods: Yogurts or ice cream can temporarily soothe the pain.
- Apply honey: It has healing properties and creates a protective layer over the sore.
Although these tips will not directly heal the sore, they will help manage the pain and improve your daily comfort.
Prevention of Mouth Sores
Preventing mouth sores is possible with some lifestyle changes. Maintaining a balanced diet rich in fruits and vegetables is essential to strengthen the immune system and avoid vitamin deficiencies that could trigger oral lesions. 
Frequently Asked Questions about Mouth Sores
How long do mouth sores last?: Generally, mouth sores disappear within 7 to 10 days. However, the pain usually decreases significantly in the first few days with proper treatment.
Are canker sores contagious?: No, canker sores are not contagious. These lesions are caused by internal factors such as nutritional deficiencies, stress, or physical injuries, and they are not transmitted from one person to another.
Effective Solutions for Mouth Sores
Mouth sores can be uncomfortable, but there are multiple options to treat them effectively. From home remedies like saltwater or aloe vera to specific medical treatments, every case has a solution. Preventing these lesions is just as important. Maintain a healthy diet, reduce stress, and practice good oral hygiene habits. If the sores persist or worsen, consult a specialist to receive the appropriate treatment. Take care of your oral health and say goodbye to discomfort!
Professional registration Nº 28004040
Degree in Medicine and Surgery, Autonomous University of Madrid
Degree in Dentistry, Complutense University of Madrid
Master’s Degree in Aesthetic Dentistry, Complutense University of Madrid
University Specialist in Pediatric Dentistry, San Rafael Hospital, Madrid
University Specialist in Individual and Public Oral Preventive Programs, Complutense University of Madrid
Director of Radiodiagnostic Facilities
Medical Director, Smiling Dental Center
Specialist in Aesthetic Dentistry, Dr. Bruce Crispin, Los Angeles, California
Member of the Spanish Society of Prosthodontics (SEPES)
CPR Course
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