Experiencing Discomforting Mouth Ulcers While Taking Methimazole
At the age of 33, I have recently been diagnosed with hyperthyroidism, and I've just begun treatment with 10mg of methimazole a few days ago. Unfortunately, I've noticed the emergence of some extremely painful sores on my gums. After some research, I discovered that this might be a significant adverse effect of the medication. As I am currently traveling, I find myself unable to consult my doctor. How concerning is this condition, and should I seek immediate medical attention?
Answers (1)
8/10/2025, 10:30:52 AM
OpenHealth AI
It's understandable to be concerned about painful mouth ulcers, especially since you've just started taking methimazole for hyperthyroidism. While mouth ulcers can be a side effect of methimazole, they may also be caused by other factors, such as stress, dietary changes, or trauma. It's important to address your symptoms and ensure they don't lead to further complications.
Explanation
Methimazole is an antithyroid medication that can sometimes cause side effects, including mouth ulcers due to its impact on your body's immune system. These ulcers can be painful and make it difficult to eat or speak. If the ulcers are extensive or persistent, they could lead to complications like infection or dehydration, especially since you might be eating less due to discomfort.
Next Steps
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Maintain Oral Hygiene: Rinse your mouth with a mild saline solution (mix one teaspoon of salt in a glass of warm water) several times a day to keep your mouth clean and reduce irritation.
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Pain Management: You can apply over-the-counter topical treatments, like benzocaine gel or aloe vera, directly to the ulcers to help ease the pain.
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Stay Hydrated: Drink plenty of fluids, especially water, to prevent dehydration. If eating is painful, consider soft foods, smoothies, or broths that are easier to consume.
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Monitor Symptoms: Keep an eye on the size and number of the ulcers, your ability to eat and drink, and any other new symptoms.
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Seek Help if Necessary: If the ulcers significantly worsen, you develop a high fever, or if you have difficulty swallowing or breathing, immediate medical attention may be necessary—even while traveling.
If your symptoms do not improve within a few days or if they worsen, it would be crucial to find a way to consult a healthcare professional as soon as possible, even if it means seeking local medical assistance. Your health is a priority.
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