Can vitamin B2 be used to treat oral ulcers?

Oct 15, 2025 Source: Cainiu Health

Dr. Liu Chao

Introduction

In general, vitamin B2 can be used to treat oral ulcers caused by vitamin B2 deficiency. However, for oral ulcers resulting from other causes, its effectiveness as a standalone treatment is limited, and management should be based on the specific underlying cause. Therefore, if oral ulcers are suspected to be related to vitamin deficiency, short-term supplementation of vitamin B2 under medical guidance may be considered.

Generally, vitamin B2 can be used to treat oral ulcers caused by vitamin B2 deficiency. However, for oral ulcers resulting from other causes, the effectiveness of vitamin B2 alone is limited, and treatment should be determined based on the specific underlying cause. The details are as follows:

Vitamin B2 is an essential B-complex vitamin required by the human body, playing a role in cellular metabolism and mucosal repair. When vitamin B2 deficiency occurs due to factors such as unbalanced diet or malabsorption, it may lead to conditions like angular cheilitis and cheilosis, and is sometimes accompanied by oral ulcers. In such cases, supplementing with vitamin B2 provides necessary nutrients for mucosal healing, promotes ulcer recovery, and improves overall deficiency symptoms.

However, the causes of oral ulcers are complex and, in most cases, unrelated to vitamin B2 deficiency. Common triggers include high levels of psychological stress, physical trauma to the oral mucosa, bacterial or viral infections, and immune system disorders. For these non-deficiency-related oral ulcers, taking vitamin B2 alone cannot address the root cause. Instead, local treatments should be used to relieve pain and promote healing, while simultaneously adjusting lifestyle habits and treating any underlying medical conditions.

Therefore, when oral ulcers occur, if vitamin deficiency is suspected, short-term supplementation with vitamin B2 under medical supervision may be appropriate. However, if ulcers recur frequently or fail to heal, timely medical evaluation is necessary to identify the exact cause and avoid delays in proper treatment due to inappropriate self-medication. Maintaining a balanced diet in daily life and ensuring adequate intake of B-complex vitamins can also help reduce the likelihood of developing oral ulcers.

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What medication should be used for mouth ulcers?

In general, oral ulcers are ulcerative lesions caused by localized damage to the oral mucosa. Common symptoms include local pain, mucosal redness and swelling, and increased discomfort during eating. Patients may follow medical advice to use medications such as watermelon frost spray, recombinant human epidermal growth factor gel, chlorhexidine mouthwash, lidocaine cream, and vitamin B2 tablets for treatment.

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What medication can treat tongue sores?

In general, tongue ulcers are often associated with mucosal injury, infection, or decreased immunity. Common symptoms include oral ulcers on the tongue, pain, and difficulty eating. Patients may use medications such as watermelon frost spray, compound chlorhexidine mouthwash, kangfuxin solution, iodine glycerin, and vitamin B2 tablets as directed by a physician. It is also important to maintain good daily habits and avoid consuming spicy foods.

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Which vitamin deficiency causes oral ulcers?

In general, oral ulcers may be related to deficiencies in vitamin B₂, vitamin B₁₂, vitamin C, vitamin B₁, and folic acid. If oral ulcers occur frequently, it is recommended to pay attention to a balanced diet and consult a healthcare professional when necessary. In daily care, one should consume more fresh fruits and vegetables, whole grains, lean meats, eggs, and other foods rich in the aforementioned vitamins, and maintain good oral hygiene.

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What are the benefits and functions of vitamin B2?

Under normal circumstances, vitamin B2, as an essential member of the B-complex vitamins required by the human body, primarily functions to maintain the health of skin and mucous membranes, promote energy metabolism, protect eye health, participate in red blood cell production, and support the improvement of reproductive system function. It is important to ensure appropriate supplementation and avoid excessive intake. Vitamin B2 can usually be obtained through dietary sources such as animal liver, eggs, and leafy green vegetables.