Differentiating Bell's Palsy From Lyme-Related Facial Palsy.

Bell's palsy and LRFP were common causes of pediatric FP in our Lyme endemic region. Systemic prodrome and calendar month may help distinguish LRFP from Bell's palsy at FP onset, guiding antibiotic use. Early corticosteroid use did not impact our measures of recovery, although subtle abnormalities may not have been appreciated, and time to recovery could not be assessed. Future prospective studies using standardized assessment tools at regular follow-up intervals are necessary.