In my country you just need to say that you have itchy skin to the right doctor and they'll give you a tube of topical ivermectin skin cream. Some of the chuds eats this, I shit you not. Or you can go on dodgy websites and buy ivermectin pills. Or doctors can illegally exploit compassionate use protocol and prescribe ivermectin pills. As a last resort, you can go to the vet or an animal feed store and buy ivermectin for animals.