Children with phlegm-dampness can be treated with Er Chen Tang plus or minus on the basis of identification of the symptoms. Damp phlegm syndrome in children can be seen in cough with excessive phlegm, white color and easy to swallow, nausea and vomiting, chest and diaphragm congestion, heavy limbs (limb weakness and fatigue), or dizziness and palpitation, with white or greasy tongue coating and slippery pulse. This syndrome is caused by the loss of healthy transportation of the spleen (dysfunction of the spleen’s function of transportation and digestion), and the accumulation of dampness into phlegm. Treatment requires drying dampness and resolving phlegm (dispelling dampness by drying dampness and dissolving phlegm), regulating qi and neutralizing the middle (regulating the qi of the spleen and stomach, so as to make the functions of the spleen and stomach smooth). Er Chen Tang is a basic formula for treating dampness-phlegm syndrome, which is composed of Semixia, Tangerine Red, Poria, Glycyrrhiza glabra, Ginger, and Ophiopogonis, which is a method of transportation in the midst of drying and transforming, focusing on treating the spleen in order to eliminate phlegm, and the combination of all the medicines plays a role in drying dampness and transforming phlegm, regulating qi and harmonizing zhong. As this formula is dry in nature, it should be used with caution for those who have dry phlegm; this formula should not be used for those who have vomited blood, consumed thirst, or have yin or blood deficiency. Children phlegm-dampness there may be other conditions, such as the need for treatment, it is recommended to early to the regular hospital, clear cause, under the guidance of the doctor for treatment, should not be self-diagnosis and treatment, so as not to delay the condition.