(Trying to treat lice) I'm trying to buy this stuff locally at TSC to avoid the insane freight charges, but it seems that TSC carries Permethrin 10, rather than Permectrin II. Has anyone used Permethrin 10 before? Are these products interchangeable? Can I use Permethrin 10 on pregnant, nursing and baby goats? Is it effective? Also, does anyone have the dosage for Permethrin 10? Thanks!