What he means is Jesus and his disciples would heal the sick by passing out pipes. This would help alleviate symptoms, not necessarily curing, but it would help. The blind man said "I was blind, but now I see". He just really means that his inner soul was opened up after he received his pipe. He was still blind, but at happy. We all just want to be happy.
Fact: Jesus smoked - http://www.jesuspipes.com