The efficacy and function of Szechuan Bei Mu is to clear heat and dissipate lumps, relieve cough and phlegm, and clear heat and moisten the lungs (to remove heat in order to moisturize the lungs). It can be steamed or boiled in a therapeutic way. Szechuan Bei Mu is bitter, sweet and slightly cold, and belongs to the lung and heart meridians. It has the efficacy of clearing heat and moistening the lungs (removing heat to moisturize the lungs), resolving phlegm and relieving cough, dispersing nodules and eliminating carbuncles (evacuating nodules and eliminating carbuncles), and is often used with Zhi Mu when used for coughing with wind-heat, phlegm-fire and coughing with yellowish phlegm. When used for coughing with wind-heat or phlegm-fire or coughing with yellowish phlegm, it is often used together with Zhimu. When used for coughing with yin deficiency, labor-heat or lung dryness, it is often used together with Sha Shen and Maidong. It can be used as a dietary supplement by steaming or boiling, for example, it can be taken in appropriate quantities and boiled with ingredients such as avocado and honey. This herb should be contraindicated for people with spleen and stomach deficiency (spleen and stomach weakness and cold), and should not be used with aconite, and should always be used under the guidance of a doctor.