IF you buy the pill form of ivermectin it will most likely come from china or india thru overseas companies. people have been billed for this and received no meds , so some of these websites are scams. ivermectin can be purchased thru online farmacies like Jeffers or other livestock suppliers or visit your local farm and feed store. local farm and feed stores have a wide variety of farmaceutical products. mane n tale medicated shampoo is my favorite anti itch skin wash , it is antifungal anti bacteria and anti parasitic , best of all it works excellent.