There could be an increased interest in ivermectin because of COVID-19.
A product that comes closest to Soolantra is topical ivermectin for horses. Which is available without prescription. For more info, see Ivermectin for horses/animals
Oral ivermectin also exists, but there are barely any reports on this forum about whether that works, and it may give side effects.
Another product that may help is Sudocrem. Not much people tried it compared to Soolantra, but it does have a positive effect on most people that tried it (including me). For more info, see Sudocrem saved me!