The use of a solution containing vasoconstrictors ensures hemostasis at the surgical site. The two options currently available are the use of local anesthetic or a physiologic solution with vasoconstrictor alone.
Use of a local anesthetic with vasoconstrictor may impair the facial nerve's function and impede the use of a nerve stimulator during the surgical procedure. Therefore, consideration should be given to using a physiological solution with vasoconstrictor alone or injecting the local anesthetic with vasoconstrictor very superficially.
Muscle relaxants used in general anaesthesia can also impair nerve function and must be avoided.