A dry cough with yellow tongue coating is associated with wind-dryness injuring the lungs or lung-yin deficiency (insufficient yin fluid in the lungs), and can be treated with Sang Xing Tang or Maimendong Tang respectively. However, those who have the above symptoms should consult a doctor in time, do not take medication on your own, so as not to cause damage to the organism. 1. Wind and dryness injury to the lungs: external wind and dryness of the evil, resulting in the loss of moistening of the lungs, the dysregulation of the Xuan Su, manifested in the pharyngeal itching and dry cough, sputum with blood, headache and nasal congestion, tongue red and dry, moss, yellow pulse floating and other superficial evidence, the treatment of the Sang Apricot Soup in order to clear and warm the dryness of the Xuan Su, moisten the lungs to stop coughing. 2. Deficiency of lung yin: prolonged cough injures the lung, lung yin deficiency, loss of moistening, manifested as dry cough with little sputum, zygomatic flushing (zygomatic bone area on both sides of the face reddish in color), five heart heat (two palms and two feet of the heart hot, and conscious of the heart and chest heat (irritability and stuffiness)), tongue red with yellow moss and less, pulse (pulse becomes narrow and thin and accelerated rate) and other evidence of the inside of the treatment can be used in the maiMengDongTang in order to nourish the lungs and stomach, lowering reversal of the lower qi.