F.CUZ's Yejun has been revealed to be diagnosed with 'shingles' (herpes zoster), a painful, blistering skin rash. After completing their comeback with "Midnight Sun," F.CUZ returned to the stage with their follow-up promotions for "Wanna Be Your Love." Fans immediately noticed the cute glasses Yejun donned this week during their comeback performances. Unfortunately, the glasses weren't so much for style, as it was a prop to help cover the rashes on his skin. Yejun commented, "Maybe it's because my immune system has dropped, but I caught shingles. It hurts a lot, and it's painful to even blink my eyes.  I'm not supposed to put any stimulating products near my skin, but I have to wear makeup in order to stand on stage, so it's inevitable." Yejun has blisters under his right eye, which makes it painful for him to blink.   It will take him about half a month to fully recover.  He continued, "I'll definitely still be working hard." Source + Photos: Sports Chosun via Daum