Boiled water with apple and tangerine peel is effective in regulating qi and strengthening the spleen (regulating qi and strengthening the spleen), harmonizing the stomach, and treating abdominal distension and diarrhea caused by disharmony between the spleen and stomach. Apple is sweet, sour, cool and non-toxic in nature. It has the effects of benefiting the stomach, generating fluids, removing vexation and sobering up. It is mainly used for treating lack of fluid and thirst, diarrhea due to spleen deficiency (diarrhea caused by weak function of the spleen), abdominal distension after eating, and excessive drinking of alcohol. Pericarpium Citri Reticulatae, bitter and pungent in flavor, warm in nature. It belongs to the lung and spleen meridians. It has the effects of regulating qi and strengthening the spleen, drying dampness and resolving phlegm (removing phlegm from the body with drugs that dry dampness). It is mainly used to treat distention and fullness in the epigastrium (abdomen), poor appetite and vomiting and diarrhea, cough and phlegm. Apple peel boiled water should be taken under the guidance of traditional Chinese medicine, not blindly self-medication.