Recurrent oral ulcers
Aphthous ulcers (canker sores) are a relatively common condition, often causing severe oral pain. Some patients experience recurrent aphthous ulcers, which can significantly disrupt daily life. So, what causes frequent aphthous ulcers?
Causes of Recurrent Aphthous Ulcers
Most aphthous ulcers result from irritation of the oral mucosa by spicy foods, deficiencies in vitamins or trace elements (e.g., vitamin B2, vitamin C, zinc), or underlying oral diseases such as periodontitis or gingivitis.

Supplementation with certain vitamins—such as vitamin C, vitamin B2, and zinc gluconate—may help repair the oral mucosa. For topical treatment, options include applying oral ulcer films, or using Bingpeng Powder (a traditional Chinese medicine formulation) or Watermelon Frost spray. Alternatively, mouth rinses containing boric acid or diluted saline solution may be used. Maintaining good oral hygiene is essential. In daily life, avoid cold, raw, or irritating foods; instead, consume more fruits and vegetables rich in vitamins.

If aphthous ulcers are secondary to oral diseases—such as periodontitis or gingivitis—the primary condition must first be treated to eliminate the source of infection. Once the underlying disease resolves, the ulcers typically heal spontaneously.
All medications mentioned above should be used only under the guidance of a physician. If you experience any discomfort or abnormal symptoms, seek prompt medical evaluation and appropriate management by a qualified healthcare professional.
We hope this information is helpful to you!