fa تخصصي Special كاربردي Applicable Facial nerve (FN) impacts the function of the facial musculature by creat-ing muscle tone at rest as well as the muscles’ voluntary and involuntary contractions. Temporary or permanent loss of FN function could be due to different etiologic factors. Acute facial paralysis (FP) could be signifi-cantly stressful for the patient and the family and apart from supportive measures management options are quite restricted. While botulinum tox-in (BTX) injection in the FP setting has been used mostly to address the compensatory hyperkinesia in the non-paralyzed side of the face, there are evidence to suggest contralateral injection of the non-paralyzed face with BTX may improve/enhance the recovery time of the FP in cases where the FP has a reversible cause. While further studies are underway, using the current evidence as discussed could potentially justify the cur-rent usage of contralateral BTX injection and biofeedback exercises in the setting of the temporary FP specialty due to lack of effective alterna-tive management options Facial paralysis, Botulinum toxin, Botox, Functional recovery, Outcome 89 92 http://wjps.ir/browse.php?a_code=A-10-466-19&slc_lang=fa&sid=1 Alireza Hamidian Jahromi 100319475328460010627 100319475328460010627 Yes Department of Plastic and Reconstructive Surgery, Rush University Medical Center, Chicago, Illinois, USA; Petros Konofaos 100319475328460010628 100319475328460010628 No Department of Plastic Surgery, University of Tennessee Health Science Center, Memphis, Tennessee, USA.