Easy to cough up clear sputum after meals may be a manifestation of chronic pharyngitis, food stimulation of the mucous membrane and glands in the throat can be coughed up after secretions, similar to clear sputum. Chronic pharyngitis is mainly a chronic inflammation of the pharynx, no fever, no general discomfort, slightly dry, itchy pharynx, a slight pain, some people do not hurt; often have a foreign body sensation, sometimes sparse sputum and mild coughing, always want to keep coughing to clear the throat, clear the foreign body, but due to the constant secretion, so the feeling is always not clear out, and also can not be cleared. This is a manifestation of chronic pharyngitis. For chronic pharyngitis. Daily life need to pay attention to climate change, to prevent colds and colds; at the same time, ban smoking and alcohol and do not eat spicy and other stimulating food. If necessary, you can go to the hospital for further consultation and treatment, so as not to delay the condition.