Intranasal Insulin for COVID-19-related Smell Loss

Intranasal Insulin for COVID-19-related Smell Loss

The aim of this study was to quantify the improvement in olfaction of 27 post-COVID-19 patients, after three intreventions of intranasal insulin during a four week period, with the help of the Threshold, Discrimination and Identification (TDI) score evaluated with Sniffin Sticks®.

Inclusion Criteria:

• COVID-19 in the last 3 to 18 months and who persisted with anosmia, hyposmia or other olfactory dysfunction chronically and without improvement

Exclusion Criteria:

• nasal tumors, chronic sinusitis, drug-induced sinusitis, nasal polyposis, neurodegenerative disease, smoking, pregnancy Hypoglycemia and a previous diagnosis of diabetes mellitus or anatomical malformations such as septal deviation, rhinosinusitis or choanal atresia