Why does my throat become itchy and uncontrollable coughing occur as soon as I lie down? What should I do?

　　Sore throat usually refers to an itchy throat. Generally, throat itching and uncontrollable coughing when lying down may be related to factors such as dry environment, airway compression, postnasal drip, allergies, and gastroesophageal reflux disease. It is recommended that patients maintain humid indoor air and adjust sleeping positions, and use medications such as Amoxicillin Capsules, Rabeprazole Sodium Enteric-coated Tablets, and pharyngitis lozenges under a doctor's guidance to alleviate symptoms. A detailed analysis is as follows:

　　1. Dry environment: When the air is excessively dry, the throat mucosa can easily lose moisture, becoming dry and sensitive. When lying down, positional changes may intensify the dryness, triggering coughing and accompanied by sensations of dryness and itching in the throat. It is recommended to maintain humid indoor air, such as using a humidifier.

　　2. Airway compression: When lying down, neck fat may compress the airway, narrowing it and irritating the throat, which can trigger coughing and may be accompanied by mild shortness of breath, chest tightness, or snoring. It is recommended to adjust sleeping positions and choose an appropriate pillow height.

　　3. Postnasal drip: Nasal secretions may excessively increase due to inflammation or allergies, and when lying down, they can flow backward into the throat, irritating the throat mucosa and causing coughing. This may be accompanied by nasal symptoms such as nasal congestion and runny nose. Patients should follow medical advice to use medications such as Amoxicillin Capsules, Cefixime Capsules, and normal saline solution for treatment.

　　4. Allergies: If patients are allergic to pollen, dust mites, etc., inhaling these allergens while lying down may trigger allergic reactions, possibly accompanied by throat pain, a foreign body sensation, and skin redness. Patients should use medications such as Desloratadine Tablets, pharyngitis lozenges, and Montelukast Sodium Tablets as advised by a doctor to aid recovery.

　　5. Gastroesophageal reflux disease: Stomach acid may reflux into the esophagus and even the throat. When lying down, gravity can cause acid to flow back into the throat, triggering coughing. It is recommended that patients use medications such as Cisapride Tablets, Esomeprazole Magnesium Enteric-coated Tablets, and Rabeprazole Sodium Enteric-coated Tablets under medical guidance to relieve symptoms.

　　In daily life, individuals should cultivate good habits, consume adequate vitamins and proteins, and engage in moderate exercise, such as jogging or hiking, which can help enhance immune function.