Clinical pharmacists participated in the treatment of severe complications of oral maxillofacial and neck space infection in a patient with recurrent adenoid cystic carcinoma of the left upper jaw after systemic chemotherapy combined with targeted therapy. Clinical pharmacists analyzed the risk factors of multiple space infection and the distribution characteristics of pathogenic bacteria by referring to literature data, and determined protocols for imipenem cilastatin plus clindamycin in the acute phase and moxifloxacin plus fosfomycin in the stable phase, and the clinician adopted this opinion. Then the infection was effectively controlled and the condition was discharged. Through consultation, clinical pharmacists assisted doctors to develop individualized treatment plans, provided reference for the safe, effective and rational use of antibiotics.

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