What causes mouth ulcers at the back of the throat and how should they be treated?

Oral ulcers occurring in the throat may be caused by dietary irritation, high levels of psychological stress, recurrent aphthous ulcers, herpangina, acute pharyngitis, and other conditions. Symptoms can be improved through dietary adjustments, stress relief, and medication. If the ulcer persists or is accompanied by high fever and difficulty swallowing, prompt medical attention is necessary.

1. Dietary Irritation: Consuming spicy, excessively hot foods over a long period or physical abrasion from hard foods can damage the pharyngeal mucosa, leading to local ulcers and noticeable pain during eating. It is recommended to eat a light diet, choosing mild foods such as porridge and soft noodles, to avoid irritating the ulcerated area.

2. High Psychological Stress: Prolonged anxiety and sleep deprivation can reduce immune function, making the pharyngeal mucosa prone to ulceration, possibly accompanied by dry mouth and fatigue. It is advised to maintain regular sleep patterns and relieve stress through activities like listening to music or meditation to enhance the body's resistance.

3. Recurrent Aphthous Ulcers: Caused by immune dysfunction or vitamin deficiencies, these lead to recurring round ulcers in the throat, accompanied by significant pain and a burning sensation. Patients may use medications such as watermelon frost spray, oral ulcer powder, and vitamin B2 tablets under medical guidance to alleviate symptoms.

4. Herpangina: Viral infection causes blisters in the throat, which rupture and form ulcers, often accompanied by fever, sore throat, and drooling. It is recommended to use medications such as ribavirin granules, Kaihoujian spray, and acetaminophen suspension under medical supervision to relieve discomfort.

5. Acute Pharyngitis: Bacterial infection leads to congestion and swelling of the pharyngeal mucosa, with local tissue breakdown forming ulcers, accompanied by severe throat pain and difficulty swallowing. Patients may follow medical advice to use amoxicillin-clavulanate potassium for oral suspension, Kangfuxin liquid, or pediatric Chiqiao Qingre granules to improve symptoms.

Maintain good oral hygiene by rinsing the mouth with warm water after meals, drink plenty of water to stay hydrated, avoid loud talking to reduce throat irritation, and consume more fresh fruits and vegetables to supplement vitamins, promoting ulcer healing.