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Can mouth sores occur due to a toothpaste allergy?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hi doctor,

After six months of recovering from the COVID infection, I started feeling itching and burning sensations in my mouth and lips. Sometimes I think that my tongue or lips are swelling. But no one except me sees a swelling. I also have some sores in my mouth. I went to an allergy specialist who made some allergy prick tests, patch tests, and blood tests for 50 allergens. From the prick tests, he said there is a weak reaction to oak and from patch tests on the 72 hours from rye. But the blood tests were all negative. He concluded that I did not have an allergy disease and sent me home. But one month after the tests, I still have the same issues. When I start having the burning, I fear I will have an anaphylaxis reaction. Could it be a reaction to toothpaste or something? Should I be concerned about this happening?

Thanks.

Answered by Dr. Shyam Kalyan N

Education:

MBBS

Professional Bio:

Dr. Shyam Kalyan N is a highly skilled Allergy and ENT Specialist dedicated to diagnosing and treating a wide range of ear, nose, throat, and allergy-related conditions. With expertise in advanced ENT care and allergy management, he provides personalized treatment plans that improve overall health and quality of life. Known for his patient-focused approach and clinical excellence, he combines modern medical practices with compassionate care to ensure long-term wellness.

This doctor is not available for online consultations on the platform anymore.

Hello,

Welcome to icliniq.com.

Although your blood allergy tests were negative, it seems like you have some allergies based on the skin prick test. In our practice, we consider the skin prick test as a confirmatory test for allergies. Kindly tell us more about the reflux problem you have, to guide you accordingly.

Regards.

Patient's Query

Hello doctor,

Thanks for the reply.

I have had reflux for several years. It was diagnosed with a gastroscopy performed one year ago. I take tablet Famotidine 20 mg of before going to bed; otherwise, I cannot sleep well. I do not snore and do not have nose blocks. The COVID-19 infection was severe, and I had a fever for 30 days, but I was cured at home. After one month of recovery, I did a whole-body scan, and I had perfect results for everything, including a pulmonary test with exhaling in different tubes. I had 10 % lesions in the lungs. But blood tests showed slight variations in vitamin D, ASAT, and LDL cholesterol. They told me all was good and nothing to worry about. I repeated the tests last week, and ASAT came back to normal.

Thanks.

Answered by Dr. Shyam Kalyan N

Education:

MBBS

Professional Bio:

Dr. Shyam Kalyan N is a highly skilled Allergy and ENT Specialist dedicated to diagnosing and treating a wide range of ear, nose, throat, and allergy-related conditions. With expertise in advanced ENT care and allergy management, he provides personalized treatment plans that improve overall health and quality of life. Known for his patient-focused approach and clinical excellence, he combines modern medical practices with compassionate care to ensure long-term wellness.

This doctor is not available for online consultations on the platform anymore.

Hi,

Welcome back to icliniq.com.

Is your vitamin D level been corrected?

Reflux can cause some burning mouth issues as well. Do you want to change to a more potent antacid? But it will take a few weeks to appreciate any change.

Thanks.

Patient's Query

Hello doctor,

Thanks for the reply.

Vitamin D is still low.

What kind of antacid do you prescribe?

Thanks.

Answered by Dr. Shyam Kalyan N

Education:

MBBS

Professional Bio:

Dr. Shyam Kalyan N is a highly skilled Allergy and ENT Specialist dedicated to diagnosing and treating a wide range of ear, nose, throat, and allergy-related conditions. With expertise in advanced ENT care and allergy management, he provides personalized treatment plans that improve overall health and quality of life. Known for his patient-focused approach and clinical excellence, he combines modern medical practices with compassionate care to ensure long-term wellness.

This doctor is not available for online consultations on the platform anymore.

Hello,

Welcome back to icliniq.com.

I recommend you kindly correct the vitamin D levels. We give vitamin D3 supplements (60000 IU) once a week for several weeks and then make it once a month.

The antacid I suggest is the tablet Neksium 40 (Esomeprazole) once daily before breakfast for three weeks.

Regards.

Patient's Query

Hello doctor,

Thanks for the reply.

Should I stop eating something? Should I be worried about having anaphylaxis? What about toothpaste or oral hygiene?

Thanks.

Answered by Dr. Shyam Kalyan N

Education:

MBBS

Professional Bio:

Dr. Shyam Kalyan N is a highly skilled Allergy and ENT Specialist dedicated to diagnosing and treating a wide range of ear, nose, throat, and allergy-related conditions. With expertise in advanced ENT care and allergy management, he provides personalized treatment plans that improve overall health and quality of life. Known for his patient-focused approach and clinical excellence, he combines modern medical practices with compassionate care to ensure long-term wellness.

This doctor is not available for online consultations on the platform anymore.

Hello,

Welcome back to icliniq.com.

Kindly use mild toothpaste. Do not gargle a lot. Gargling a few times daily with hot water saline is enough. Medicated gargles can trigger acid reflux and cause more harm than any benefit.

Stop eating spicy and oily foods. Avoid milk and milk products till you get better. And do not worry about anaphylaxis.

Take care.

Medically reviewed by Dr. K. Shobana
Published At November 7, 2021
Reviewed At October 14, 2025

Education:

MBBS

Professional Bio:

Dr. Shyam Kalyan N is a highly skilled Allergy and ENT Specialist dedicated to diagnosing and treating a wide range of ear, nose, throat, and allergy-related conditions. With expertise in advanced ENT care and allergy management, he provides personalized treatment plans that improve overall health and quality of life. Known for his patient-focused approach and clinical excellence, he combines modern medical practices with compassionate care to ensure long-term wellness.

This doctor is not available for online consultations on the platform anymore.

Education:

BDS

Professional Bio:

Dr. K. Shobana is a Dental Surgeon specializing in oral health and dental care. She is skilled in preventive dentistry and provides oral hygiene education. She can do restorative treatments such as fillings and crowns. She can handle periodontal problems such as gum diseases and periodontitis. She can do root canal treatment.

This doctor is not available for online consultations on the platform anymore.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Education:

MBBS

Professional Bio:

Dr. Shyam Kalyan N is a highly skilled Allergy and ENT Specialist dedicated to diagnosing and treating a wide range of ear, nose, throat, and allergy-related conditions. With expertise in advanced ENT care and allergy management, he provides personalized treatment plans that improve overall health and quality of life. Known for his patient-focused approach and clinical excellence, he combines modern medical practices with compassionate care to ensure long-term wellness.

This doctor is not available for online consultations on the platform anymore.

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