The child’s yellow and thick tongue with cracks may be caused by the prevalence of dampness and heat, spleen and stomach weakness, Yin deficiency and internal heat, etc. Different treatments should be taken according to different causes, such as gentian and liver pills for those with prevalence of dampness and heat, ginseng and baijutsu pills for those with spleen and stomach weakness, and zhi bai di huang pills for those with Yin deficiency and internal heat, etc., which are recommended to be used under the guidance of a doctor. 1. Damp-heat bias: Chinese medicine symptoms, mostly related to dietary disorders, spleen and stomach dysfunction, etc., can be manifested as bitter mouth, fever, yellow and thick tongue coating and other symptoms. Children with yellow and thick tongue coating with cracks can be considered as a result of the prevalence of dampness-heat, generally can follow the doctor’s instructions to use medicines such as gentian diarrhea liver pill to clear away heat and dampness (to get rid of the body’s heat and dampness). 2. Weakness of the spleen and stomach: mostly caused by prolonged illness and dietary disorders, often manifested as yellowish color (yellowish and lusterless), fatigue (lack of mental energy), tiredness, and yellowish-thickness of the tongue, etc. The child has yellowish-thickness of the tongue. The child’s tongue is yellow and thick with cracks and spleen and stomach weakness, can follow the doctor’s instructions to use ginseng ling bai ju san, ginseng plum stomach granules and other drugs in order to replenish qi and strengthen the spleen. 3. Yin deficiency and internal heat: this refers to the fever caused by the deficiency of yin in the body and the failure of water to control fire, which can be manifested as insomnia and night sweating (abnormal sweating after going to sleep, but the sweating stops after waking up), dry throat and mouth, and yellowish-thickness of tongue coating, etc. Yellowish-thickness of tongue coating and cracks in the child’s tongue coating may be caused by the deficiency of yin and internal heat, which can be nourished by medicines such as Zhi Bai Di Huang Wan and Bai He Gu Jin Wan (nourish the yin essence and remove the heat evils) as advised by the doctor. If your child has any of the above symptoms, you should consult a doctor and take medication as prescribed by the doctor to avoid delays.