Yellowish tongue coating can be treated with medicines such as Gentian Diarrhea Liver Pills and Nourishing Yin and Clearing Lung Pills. Longdian Diarrhea Liver Pill is used for dizziness and red eyes (dizziness and red eyes) caused by damp-heat of liver and gallbladder (damp-heat evils accumulated in liver and gallbladder), tinnitus and deafness, dystocia and bitterness of mouth (pain in dystocia and ribcage area and bitterness of mouth), redness of urine, and wet-heat leucorrhoea. It should not be taken for a long time by those with weak spleen and stomach, and should be used with caution by pregnant women and those with stomach cold. Nourishing Yin and Clearing Lung Pill has the efficacy of nourishing Yin and clearing lung, clearing heat and facilitating pharynx. It is used for dry and sore throat, dry cough with little phlegm. Diabetic patients are forbidden to take; phlegm and dampness congestion is forbidden to take. If the yellowing of the tongue is caused by eating foods such as oranges and mangoes, treatment is usually not needed. If the symptoms of yellow tongue coating are not relieved for a long time or accompanied by other discomforts, consult a doctor in time to identify the cause and carry out targeted treatment.