Internal heat in children is usually caused by damp-heat in the spleen and stomach (the spleen and stomach feel damp-heat evil qi), yin deficiency in the liver and kidney (insufficient yin in the liver and kidney), etc. It can be adjusted according to the cause of the disease through diet and medication. If it is caused by dampness-heat in the spleen and stomach, it can take oral liquid for clearing heat and resolving dampness; if it is caused by yin deficiency in the liver and kidney, it can take Six-flavored Digoxigenin Pill. 1. Damp-heat in the spleen and stomach: Internal heat caused by damp-heat in the spleen and stomach is often manifested as thick and greasy tongue, dry stools, and loss of appetite, etc. It is recommended that the patient should firstly adjust the dietary structure, and can consume fruits such as oranges, dragon fruits, bananas, etc., and avoid oily and spicy foods, and if necessary, can take the medicines of Clearing Heat and Resolving Dampness Oral Liquid and Arujian Spleen Powder under the guidance of the doctor. 2. Liver and kidney yin deficiency: Liver and kidney yin deficiency is generally caused by the deficiency of yin fluid in the body, and accompanied by dry eyes, dizziness, dry mouth and other related symptoms, the patient can consume appropriate food such as silver fungus, lily and other foods to assist in nourishing the liver and kidneys, or to take six flavors of dihuang pills, zhi bo dihuang pills and other proprietary Chinese medicines to alleviate the treatment. It is recommended that patients should consult with the relevant doctors before using medication, do not blindly use medication, so as not to cause aggravation of the condition.