The tip-off to me for my son was that he'd been tired for a couple of days, looked thin and wan, and had lost his taste and smell, not to mention appetite. And one of his friends had just been diagnosed with WuFlu. Within three hours of taking 1.5 ml of Ivermectin, my son had his appetite and taste back. One day and three more doses later, he looked healthy and wasn't tired anymore. Etc.
Totally agree that a real study should be conducted.
Glad your son got better and quickly.
Covid recovery stories are the best.