Causes of baby's oral ulcers

Written by Huang Kun Mei
Pediatrics
Updated on May 21, 2025
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Babies with oral ulcers can generally be considered under the following circumstances. The first situation is where the child usually eats fewer vegetables, and the possibility of vitamin deficiency causing this condition is relatively high. This is because children do not like to eat vegetables and will have very low vitamin content, which can easily lead to oral ulcers.

The second situation is caused by infection, such as when the child has a fever, cold, and other infection symptoms, which can also lead to oral ulcers. If it is caused by infection, it is necessary to promptly administer anti-infection traditional Chinese medicine for treatment. If it is caused by a vitamin deficiency, the child needs to be timely supplemented with vitamins and eat more fresh vegetables and fruits to treat oral ulcers. You can also spray some traditional Chinese medicine for treating oral ulcers on the child.

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Written by Li Cui
Dentistry
1min 2sec home-news-image

Can I take acyclovir tablets if I have severe oral ulcers?

When patients experience severe oral ulcers, it is generally not recommended to take acyclovir tablets, because acyclovir is used to treat symptoms caused by some viral infections. If the disease is caused by viral infections, acyclovir can be taken orally. When oral ulcers occur, they are generally caused by "internal heat" in the patient's body, possibly due to a decrease in resistance, leading to local mucosal ulceration, bleeding, and pain in the mouth. When patients have low resistance, it is suggested that they adjust their resistance appropriately, eat more fresh vegetables and fruits, ensure adequate rest, drink plenty of water, and adjust their lifestyle appropriately without overeating or drinking. Oral ulcers and acyclovir are not closely related, so it is advised not to take acyclovir tablets when oral ulcers occur. (Medication should be administered under the guidance of a physician.)

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Written by Zhang Jun
Otolaryngology
1min 13sec home-news-image

What are oral ulcers like?

Oral ulcers refer to localized lesions occurring on the oral mucous membranes, such as the inner cheeks, the underside of the tongue, and the mucous membrane of the tongue. There are various causes of oral ulcers. Commonly seen causes in clinical practice include repeated dental calculus, irritation from dental caries, prolonged intake of spicy foods, gastrointestinal dysfunction, acid reflux irritation, and endocrine disorders. Nutritional deficiencies due to selective eating can also lead to such mucosal lesions. Upon examination, scattered, isolated, crater-like ulcers can be found in any part of the oral cavity. The pain is significant in the affected areas, and bloody secretions may be observed when pressed. For treatment, patients are initially advised to use watermelon frost spray for external application, which has been found to be effective. Additionally, maintaining a bland diet, abstaining from smoking and alcohol, avoiding spicy foods, and controlling acid reflux with regular meals can gradually lead to improvement. (Note: The use of medications should be carried out under the guidance of a professional doctor.)

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Written by Li Cui
Dentistry
1min 6sec home-news-image

Can I eat donkey-hide gelatin if I often have oral ulcers?

Patients who frequently suffer from oral ulcers are advised to consume less donkey-hide gelatin and avoid consuming it in large quantities. This is because excessive consumption of donkey-hide gelatin may lead to "internal heat" in some patients, which can exacerbate the condition of oral ulcers. If the donkey-hide gelatin is part of some traditional Chinese medicine formulas, it is generally safe to consume, and patients need not worry too much. However, patients who often suffer from oral ulcers must seek timely medical consultation to diagnose what causes their ulcers, as other systemic diseases can also cause ulcers. Therefore, it is advisable for patients to identify the cause early and formulate a specific treatment plan. If the occurrence of oral ulcers is occasional and mild, patients need not be overly concerned; topical anti-ulcer medication can be used and can be very effective in treatment.

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Written by Fang Xiao
Dentistry
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What fruits are good to eat for oral ulcers?

If you have mouth ulcers, you should eat more apples, pears, watermelon, dragon fruit, cherry tomatoes, and kiwifruit. These are rich in vitamin C and complex B vitamins, which can effectively promote the healing of ulcers. This is because they can promote the synthesis of collagen, allowing the ulcer surface to heal quickly. Additionally, it is beneficial to consume more fibrous foods, such as green vegetables, leeks, and celery, to supplement dietary fibers and vitamins needed by the oral cavity. This can help in the recovery from mouth ulcers and also prevent frequent occurrences. It is advisable to avoid spicy and stimulating foods, consume fewer tropical fruits like lychee and longan, avoid staying up late, and maintain regular bowel movements.

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Written by Li Cui
Dentistry
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Can severe oral ulcers cause fever?

Oral ulcers generally do not cause fever, and common oral ulcers usually heal on their own within about a week. In the initial days, they may manifest as localized pain. In cases of severe or recurrent oral ulcers, or when accompanied by fungal and other bacterial infections, there might be occurrences of fever. In such cases, it is generally recommended for patients to take oral anti-inflammatory medications or antipyretic analgesics to reduce inflammation and fever. Firstly, patients must pay attention to oral hygiene and avoid consuming spicy and irritating foods. Additionally, it is advised that patients visit a hospital for consultation, where they can have a complete blood count test and ensure to rest properly. (The use of medications should be conducted under the guidance of a professional doctor.)