Chenpi, hawthorn, henbane and Chinese yam boiled in water can be used to strengthen the spleen and eliminate phlegm. 1. Pericarpium Citri Reticulatae has the effects of regulating qi and strengthening the spleen (regulating qi and strengthening the spleen), drying dampness and resolving phlegm (removing phlegm in the body with drying dampness medicine). It is used for distention and fullness in the epigastrium (abdomen), poor appetite, vomiting and diarrhea, and coughing with excessive phlegm. 2. Hawthorn has the efficacy of eliminating food and strengthening stomach (promoting food digestion and strengthening the function of stomach and internal organs), promoting Qi circulation and dispersing blood stasis, resolving turbidity and lowering fat (cleansing the body of impurities and reducing excess body fat). It is used for meat and food stagnation, stomach and epigastric distension, dysentery and abdominal pain, blood stasis and menstrual occlusion, postpartum stasis and obstruction, stabbing pain in the heart and abdomen, chest paralysis (chest tightness and pain), heart pain, hernia pain and hyperlipidemia. 3. Chicken Neijin has the effects of strengthening stomach and eliminating food, astringing spermatozoa and stopping spermatorrhea (consolidating semen and preventing spermatorrhea), and clearing gonorrhea and dissolving stones. It can be used for food stagnation (the accumulation of food in the stomach due to indigestion), pediatric chancre (a kind of chronic disease of children, manifesting as emaciation, abnormal eating and drinking, abdominal distension, thinning and yellowing of hair, etc.), and astringent pain of stone drenching (discharging sand and stone during urination, or sudden interruption of urination, pain in urethra, and intolerable pain in waist and abdomen), etc. It is also used for the treatment of pain in hernia. 4. Yam has the effect of tonifying the spleen, nourishing the stomach, generating fluids and benefiting the lungs, tonifying the kidney and astringing the essence. It is used for spleen deficiency with little food, prolonged diarrhea, lung deficiency with asthma and cough, kidney deficiency with spermatorrhea, dyspareunia, frequent urination, deficiency heat and thirst. The above drugs need to be used under the guidance of a doctor.