Shock therapy like the one in Argentina is what turned the tide of inflation in the 1980s in the US:
https://en.wikipedia.org/wiki/Early_1980s_recession_in_the_U.... Milei got a strong mandate, but we will have to see if his mandate and his conviction is ultimately strong enough.
At the time Volcker, the president of the Fed, was a target of many social groups - for example he would get in his mail, along with very explicit an threatening letters, car keys from dealerships that went bankrupt. Reagan himself waged wars against some groups, for example he had a huge falling out with Air Traffic Controllers that resulted in sacking most of them and substantial problems with air traffic management due to understaffing.
But it worked, and we got the prosperous but greedy 80s. Soviet Union never recovered from the inflationary pressures, except that over there the system lacked price discovery so inflation manifested in other ways, through extreme shortages of goods / very long queues.
The situation in the late 1970s was so severe that the US even started issuing bonds in foreign currency! People preaching "the end of the Dollar" or some other similar extreme ideas usually don't realize that we're not even close to the Carter bonds stage yet. And even that stage was ultimately reversed. https://en.wikipedia.org/wiki/Carter_bonds