Abstract:Objective To explore the effect of diarrhea moxibustion combined with modified Houpo Sanwu decoction on chemotherapy-related nausea and vomiting in breast cancer patients.Methods 124 inpatients with postoperative adjuvant chemotherapy for breast cancer in the oncology department of our hospital were collected from January 2022 to January 2023. They were divided into the control group (n=62) and the observation group (n=62) according to the random number table. The control group was given tropisetron hydrochloride intravenously, 5 mg each time, once a day, for a total of 3 days; On the basis of the control group, the observation group was given diarrhea moxibustion and modified Houpo Sanwu decoction once a day for 7 days. The control effects of nausea, vomiting and anorexia were compared between the two groups, and the quality of life (QOL) and Karnofsky performance status (KPS) scores, serum 5-hydroxytryptamine (5-HT) levels were compared between the two groups.Results Compared with the control group, the observation group showed a significant increase in the effective rate of acute and delayed nausea/vomiting control (P<0.05). The effective rate of controlling delayed and acute appetite loss in the observation group was higher than that in the control group, but there was no significant difference (P>0.05). Compared with before intervention, both groups showed an increase in KPS and QOL scores after intervention (P<0.05), and the KPS and QOL scores in the observation group were higher than those in the control group (P<0.05). On the 7th day after chemotherapy, the serum 5-HT levels in both groups significantly increased (P<0.05), but the increase in the observation group was smaller than that in the control group (P<0.05).Conclusion Diarrhea moxibustion combined with modified Houpo Sanwu decoction has a good effect on chemotherapy-induced nausea and vomiting in breast cancer patients. It is helpful to alleviate nausea and vomiting symptoms, improve the quality of life of patients, and reduce the serum 5-HT level. It is worthy of clinical application.