The yellowish tongue is not useful to take six flavors of dihuang pill. The six flavors of dihuang pill is nourishing kidney yin, for the tongue red less moss, can not treat yellow tongue, yellow tongue can take Huanglian warm gallbladder soup and other drugs. Liu Wei Di Huang Wan is composed of Di Huang, Cornu Cervi Pantotrichum, Dampy, Zedoary, Yam, Poria, and can treat kidney yin deficiency followed by lumbar and knee soreness (a feeling of soreness and weakness in the lumbar area and knees), dizziness and tinnitus, night sweating (sweating abnormally after falling asleep, but sweating stops after waking up), spermatorrhea, dryness of the back of the tongue and tongue, and tongue redness and less moss. Those with yellow and greasy tongue need to clear heat and resolve phlegm, not nourish Yin, nourishing Yin may aggravate phlegm-dampness, and the tongue will be more yellow and greasy. At this time, we can take Huanglian Warm Gallbladder Soup, the medicine consists of Chen Pi, Bamboo Roots, Hovenia, Huanglian, Poria, Pinellia, Glycyrrhiza, Licorice, Jujubes, Ginger, and so on. It can treat insomnia with phlegm-heat disturbing the heart, bitter mouth, dizziness, and yellow and greasy tongue. The adverse reactions and contraindications of the above drugs are not clear, taking the above drugs need the guidance of a doctor.