Now [Zara] Patel's team has tested a new treatment for long-term, COVID-19-related smell loss using injections of platelet-rich plasma derived from a patient's own blood. In a trial of 26 participants, those who received the treatment were 12.5 times more likely to improve than patients who received placebo injections. The study was published Dec. 12 in the International Forum of Allergy and Rhinology.
— Read more in Nasal injections could treat long-term COVID-19-related smell loss at Stanford Medicine.



