Henry got his wisdom teeth removed.

The January 12th episode of MBC's 'I Live Alone' showed Henry visiting a dentist to get his wisdom teeth removed. The idol star was extremely nervous and scared to get the procedure done. The nurses had to babytalk him as if he's a little kid facing his biggest fears. Also, prior to the treatment, the doctor tried to calm Henry and said, "I removed it for (Super Junior) Donghae and (TVXQ) Changmin as well and they never said it hurt."

Henry overcame his fears and ultimately got his wisdom teeth pulled out. He was insisted not to talk for several hours until the anesthesia completely wears off. With this in mind, Henry used a sketchbook during an interview, causing much laughter. He wrote, "It hurts TT"