Ms. Eliezer are you looking for any help to learn Coue's method?
Or you want to do some research further?
Doctors will not support or sponsor Coueism since it directly hurts and devalues their profession and importance. Humans get crazy if you hurt their religion or their means of bread-and-butter.
Unfortunately I don't have any of Coue's historical documents(criticism, commentary and other references) over the last 100 years. If I get, I'll be happy to upload them here.
I don't see any use of these. Coue's trick
is simplest thing in the world. It is so simple that almost everybody wouldn't understand at the very first time of explanation.
Coue's method was spectacular success. Hardly any failures!
His wish was to introduce it to reformatories and jails to cure the criminals and outlaws and see the benefits.
In this English speaking world we may not find those teaching/Coueism but it seems Europe(with non-English language countries) seems to be bubbling with Couism( pl. see here