But for about one in five of those who were once infected [by Covid] — an estimated 37 million people in the U.S. like Burger — that loss or change of smell lingers. There are ways to regain it through daily training, but it is tedious and takes a long time and it is tough for people to stick with it.

But little shocks to a nerve in the face may help. The Medical University of South Carolina has a clinical trial to find out if and how it works.

— Read more in COVID stole your sense of smell. These little shocks at MUSC might help bring it back at The Post and Courier.