So he flies to Chicago and was turned away.
"If a Canadian admits to a border official that the purpose of their visit is to attend a rehab clinic, it?s going to raise issues of whether or not the Canadian has been convicted of a drug offence or committed an act that will result in a finding of inadmissibility. And it?s discretionary as to whether or not the officer can bar him. The admission of the purpose of going to the U.S. for rehab could result in a refusal."
http://www.cbc.ca/news/canada/toront...rder-1.2633179
So my question to you Canadians is do you not have treatment centers that can deal with addiction problems. Why would he need to seek help in the US?