The same thing happened to my husband after we changed our diet to organic raw fresh fruits/vegetables. He was covered in HIVES even on the palms of his hands. Sorry to say it took quite a few months for it to clear up, about 9 months. He continued to eat better, colon cleanses, skin brushing, exercise, green drinks, etc. until they cleared up. (He was into junk food before he started.) So, the best that I can offer is encouragement! You know in your heart that you are on the right path. Keep up the good work and you will be rewarded.
My husband is in excellent health and says that he has never felt better in his life!