If all illness was gone when one became "enlightened" then no one, including Mother Theresa or the Pope would die.
It's a nice thought and one does do well to surrender to what our bodies are telling us, i.e., "You're out of balance! You have a systemic condition that needs to be corrected!" But just thinking that alone, will not get rid of your hives, believe me, I've tried. A spiritual connection, whatever you believe it to be is powerful, but it not a "cure all". I can time line how I became this ill and give specifics as to how it happened, many of us can. I have surrendered to the fact that I need to listen to my body and assist in it's healing and that I am being called to healing on a deep level. Knowing that alone, does not heal the condition, but again, we are all different.