Vitamin A nasal drops to treat post-COVID-19 smell loss: key points. Patients share effects of post-infection loss of smell; nasal drops tested as a way out. Last updated: October 12, 2021 | 15:31.

COVID-19: Vitamin A nasal drops to be trialled to help restore smell loss. Loss of smell is one of the main symptoms of COVID-19, alongside a loss of taste, persistent cough, and high temperature.