As soon as you eat stimulating food there is mucus in the throat, which may be related to reflux pharyngitis, postnasal drip syndrome, chronic pharyngitis and other factors. 1. Reflux pharyngitis: Gastroesophageal reflux disease (GERD) is mainly caused by digestive tract dysfunction, especially when the diet structure is irrational, such as frequent consumption of sweets, greasy food, spicy and irritating food, there can be obvious acid reflux, belching (hiccups), heartburn. Mucus can also be felt in the throat when the stomach contents irritate the throat area. 2. Postnasal drip syndrome: mostly secondary to sinusitis, rhinitis and other nasal diseases. After the nasal mucosa is damaged, purulent secretion can be formed, and the phenomenon of backflow occurs along the nasal cavity. Especially after consuming irritating food, it will aggravate the discomfort symptoms such as pharyngeal itching, pharyngeal foreign body sensation, burning sensation and so on, and the patients will feel that there is mucus adhering to the pharynx. 3. Chronic pharyngitis: mostly due to incomplete treatment of acute pharyngitis, recurrent episodes evolved. The mucosa of the pharyngeal cavity under the influence of long-term chronic inflammation, can form a large amount of secretion, accompanied by pharyngeal foreign body sensation, pharyngeal itching, dry throat and other symptoms, often in the consumption of salty, sweet, spicy and various stimulating food aggravated, so self-consciousness of the pharynx with mucus. After the emergence of related symptoms to maintain a light diet, such as eating more fresh vegetables and fruits, drink more water; in addition to medical examination as soon as possible, a clear diagnosis of targeted treatment, to avoid delaying the condition.