A 52-year-old woman complains about face distortion. It appeared 2 days ago after supercooling. Objectively: body temperature is 38,2°C. Face asymmetry is present. Frontal folds are flattened. Left eye is wider than right one and doesn't close. Left nasolabial fold is flattened, mouth corner is lowered. Examination revealed no other pathology. Blood count: leukocytes - 10 × 109/l, ESR - 20 mm/h. What is the most probable diagnosis?