Inclusion Criteria:  Subject is >18 years of age Subject has had moderate to severe symptoms of nasal congestion for >3 months (TNSS rating of 2 or 3) Subject has signed IRB-approved informed consent form  Exclusion Criteria:  Subject has neurologic comorbidities Subject has active dental infection Subject is pregnant Subject has implanted intracranial electrostimulation device(s) (e.g. cochlear implant, deep brain stimulator) Subject has undergone sinonasal or craniomaxillofacial surgery within the lats 3 months Subject has been diagnosed with intracranial hemorrhage within the last 6 months Subject has open scalp wounds or rashes Subject has any history of craniotomy without replacement of a bone flap Subject has elevated sensitivity to sound Any physical condition that in the investigator's opinion would prevent adequate study participation or pose increased risk