This study will be a chart review and FaCE questionnaire developed for patients who have undergone chemodenervation for unilateral facial paresis. Patients who come in to the PI's clinic and undergo chemodenervation clinically until 2016 will be included. We anticipate that this cohort will include approximately 50 patients ranging in age from 18 to 85. Information collected will include patient name, MRN, diagnosis, dates of therapy, comorbidities, gender, race questionnaire results-drinking from a cup, ability to make specific sounds, ability to keep food in mouth, eye tearing, difficulty brushing teeth, isolating themselves, calmness, irritability with others, social activities, tension/pain/spasms on affected side of face, ability to move face (pucker lips, smile raise eyebrows), treatment by others. The effects of chemodenervation gradually decrease over several months after administration, which requires a continuous readministration as needed. Questionnaire will be delivered prior to chemodenervation and after chemodenervation. Each patient will be asked to undergo the study process(pre- and post- survey) through one chemodenervation treatment randomly. The pre-treatment questionnaire will be filled out in writing prior to the procedure in clinic. Then, approximately 2-6 weeks post-injection, the patients will be called and asked to conduct the same questionnaire verbally over the phone as a post-treatment survey. The data will be collected, deidentified and stored in an Excel spreadsheet for analysis. Analysis will involve assessing if patients have improved functionality and quality of life for undergoing chemodenervation. Chemodenervation is a standard treatment these patients routinely undergo. Study is only adding a survey to assess the outcomes from the patients perspective.