Abstract: Complaints have been extensively studied in pragmatics, yet little attention has been paid to their responses in doctor-patient-companion multiparty interactions, particularly from the perspective of dynamic face management in interpersonal pragmatics. Focusing on third-party complaints directed at patients, this study examines how doctors strategically respond to complaints through other-oriented face management and a harmonious pragmatic orientation. Findings reveal that, in the context of specific illnesses and close family relationships, complaints often stem from the negative impact of illness on family life and relational conflicts. Doctors’ responses embody an other-oriented face management approach centered on the patient, which reflects the prioritization of patients’ face needs in medical institutions and an interpersonal pragmatic orientation in multiparty interactions. The study sheds light on the strategic and harmonious pragmatic mechanisms involved in complaint responses, offering valuable insights for managing multiparty relationships and promoting harmonious doctor-patient-companion dynamics.