Actor Shin Dong Wook commented on the recent support he received after it was revealed he's suffering from a rare illness called Complex Regional Pain Syndrome / Reflex Sympathetic Dystrophy (CRPS).

On January 11th, Shin Dong Wook posted a letter to his fans on his fan cafe titled, "Thank you and Sorry".

The letter read, "As I was reading heartfelt and encouraging messages from you guys, I gained strength, but I feel very sorry as well. I promised as I enlisted that I would come back healthy... To listen to your encouraging words while suffering from a disease, I feel as though I couldn't keep my promise, and I'm very sorry from the bottom of my heart."

The actor continued with determination, "I am thinking and accepting of it as another incident and task in my life as I am fighting through it. I'm diligently getting treatment and receiving a lot of love, and I feel like I can come out in front of everyone tomorrow with a smile on my face. No, it will be like that. I will promise you that once again."

Shin Dong Wook also apologized for becoming ill during his military service, "I feel as though I have become a burden for those hardworking soldiers by receiving attention for getting sick while serving my duty as a citizen like everyone else, ."

He concluded, "To be recognized and encouraged for being a little sick just because I am an actor, I don't know how to handle myself. I am becoming better with treatment and rehabilitation. No, It will get better. I will work harder, so I can get back to acting as if nothing happened in return for all the love and support."