Patients with transcutaneous electrical acupoint stimulation (TEAS) group receive electrical stimulation of acupoints including Dazhui (DU14), Geshu (BL17), Zusanli (ST36), Sanyinjiao (SP6), and Hegu (LI4).

On the basis of routine nursing care, patients need to take Sanguisorba officinalis L., named Diyu Shengbai Pian (a Traditional Chinese Medicine) 3 times per day.

The patients of control group receive routine nursing care, including (1) to be observed the changes in patient condition, (2) to eat high-calories, high-protein, high-vitamin, easy-to-digest foods during chemotherapy, (3) to be treated by psychological care, (4) to be prevented against the occurrence of phlebiti, and (5) to use Ondansetron and Omeprazole as direction.

The patients will be treated by their assigned acupuncture stimulation in 7 days. The surface electrical stimulation devices and application parameter are: G6805-II pulse acupuncture treatment instrument from Shanghai Medical Technology Company, Ltd (Shanghai, China); sparse-dense wave stimulation (sparse wave 30Hz; dense wave 100Hz) with an intensity of 6-15 V; and the corresponding parts of the body experienced a slight quiver, with a duration 20 minutes each time.

The routine blood examinations of indicators of bone marrow suppression, including red blood cells (10^12/L), hemoglobin (g/L), white blood cells (10^9/L), and platelets (10^9/L).

The Comfort Scale is assessed using General Comfort Questionnaire designed by KY Kolcaba. A preliminary experiment was conducted in 30 patients with NSCLC before the first visit, and the reliability coefficient of the scale was calculated; Cronbach's alpha = 0.932 indicated high internal consistency.