... I remember drinking Ma Huang tea to alleviate allergy symptoms, not to get high.

This guy I knew had brewed up a batch to take to a Dead show and was convinced he was going to have some ecstatic drug experience with it. He drank some and then was acting like he was in some deep trip. I just laughed at him. He also advocated putting Tiger Balm on your temples to get high. I told him that was much more effective on his *****.