Thick tongue coating and sore throat with red tongue tip is a manifestation of dampness-heat internal exuberance (exuberance of dampness-heat evil energy in the body) or stomach fire (exuberance of fire-heat evil energy in the stomach), which can be treated by taking medicines such as Ermiao San or Qingtu San. 1. If the manifestation of yellow, thick and greasy tongue coating is accompanied by sore throat and irritability, limb acidity and drowsiness, heavy head, constipation, short and red urine (small amount of urine, dark yellow in color) and burning heat and other symptoms of damp-heat internal exuberance, Ermiao San can be used to clear away heat and promote the treatment of dampness (to get rid of heat and dampness evils in the body). 2. If the tongue is yellow, thick and dry, accompanied by symptoms such as dry mouth and sore throat, bad breath and swollen gums, thirst for drinking, hunger (eating too much and getting hungry easily), burning pain in the stomach and epigastrium, dry stools and short urine, etc., the patient can be treated with Qingtong San to clear the stomach and lower the fire. Those who have the above symptoms should consult a doctor in time, and the specific medication should be used under the guidance of a professional physician.