The main causes of throat itching and coughing at night are as follows: First, it may be caused by rhinitis, sinusitis and other nasal lesions that cause secretions to flow into the throat and stimulate the throat. Second, there is pharyngitis, tonsillitis and other inflammatory diseases of the throat itself, due to pathogenic factors or secretion stimulation. Third, the reflux of gastric juice caused by diseases such as esophagitis and gastritis stimulates the mucous membrane of the pharynx, as well as some inflammatory diseases of the trachea and lungs. Therefore, for all the above cases, it is recommended to go to the hospital for examination to clarify the specific causes of the above symptoms and to carry out targeted treatment. You should also pay attention to a light diet, prohibit spicy and irritating foods, and try to avoid smoking and alcohol.