Well, I think oral ivermectin should be more common as a rosacea treatment. Rosacea skin has a damaged barrier and topicals can be extremely difficult for many to tolerate. Also, topical treatments can be very slow to take effect as seen in a Galderma study of Soolantra where 30% of trial participants took up to a year to achieve clear/almost clear results. Then there is demodex brevis. A much smaller cousin of demodex folliculorum, which lives deeper in the pores. Little is known about brevis and, unlike folliculorum, it doesn't appear to exit pores at night to mate. If this is indeed the case then how do we kill it with a topical which may not penetrate the skin deep enough to reach it.
I think the horse paste is more of a hit in the States than in Europe. Its down to the crazy prescrition medication prices Americans pay, whereas in Europe Soolatra is many times cheaper. Ivermectin, as far as i know, is not water soluble. So any topical gel version of Soolantra will need one of those irritataing oil soluble excipients to disolve it. The horse paste looks like a gel but i have seen comments from people saying that it feels and looks like vaseline after applying it.
Anyway, I'll give it a couple of months and I'll post my results on the page you mentioned.