At-Home Olfactory Training

This study randomizes participants to receive either a four scent or fourteen scent olfactory
retraining protocol. Baseline olfaction will be tested with a currently commercially
available smell test as well as an essential oil based smell test. The protocol involves
twice daily retraining where the participant inhales the scent and makes a mental note of
what they should be smelling. The training period is six months total with a visit at 3
months to re-assess smell function as well as at six months.

Inclusion Criteria:

- Have clinical olfactory dysfunction

Exclusion Criteria:

- Pregnant women

- Unable to perform routine follow-up

- Current participation in another clinical trial during this trial

- Patients with dementia, Alzheimer's disease, Parkinson's disease, or other
neurocognitive disorders

- Diagnosis of other systemic conditions known to impact the sinonasal cavity such as
Wegener's granulomatosis, Churg Strauss, and immunodeficiency

- Patients who are allergic to any of the smells or components of our olfactory testing

- Chronic rhinosinusitis, malignant tumors and/or oncologic therapies
(radiation/chemotherapy)

- History of surgery on the nose or paranasal sinuses

- Patients using medications that may impact olfactory function (i.e. corticosteroids)