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The cause of aphthous ulcers remains unknown. Associations with haematinic deficiency, infections,
food sensitivities, and psychological stress have rarely been confirmed.
Similar ulcers are seen in Behçet's syndrome. Local physical trauma may initiate ulcers in susceptible
people. Recurrent aphthous ulcers are uncommon on keratinised oral mucosal surfaces, and
the frequency of recurrent aphthous ulcers may fall if people cease any tobacco smoking habit.
Aphts usually heal spontaneously in 7-10 days. Precautions for viral and other causes are taken. Oral hygiene is important. Oral rinse can be used. If the apht is persistent, biopsy may be obtained by your doctor. If you have herpes labialis, you shoud take your antiviral treatment before the disease occurs.
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