I don't know about ivomec. I would prbably ask your vet before using it if you don't find any here with experience with it. Just so you know Nix (lice shampoo) does wonders to get rid of mites. Mix a bottle with about 5 litres of water. Then put it in a spray bottle and mist away. Then repeat after two days. Then in another two days and you should be ok.
In the words of a Ball python, "I won't eat it, but I'll squeeze it."