Can a custom fragrance help COVID-19 patients regain their sense of smell?

Sue Phillips, who makes custom fragrances from her “scentarium” in New York, is helping COVID-19 patients get their sense of smell back. Watch the interview here: https://abcnews.go.com/GMA/GMA3/video/custom-fragrance-covid-19-patients-regain-sense-smell-78674800