Patricko,
I would recommend first doing a Bowel Cleanse (I swear by Dr. Schulze 's) using intestinal formula number one. This is important because as you detoxify your system, you want to make sure that all the junk gets out as swiftly as possible and doesn't get reabsorbed making you more sick.
Then, I would do a liver flush. I do Dr. Schulze 's but I hear good things about Hulda Clark 's as well.
I also echo Lapis in that skin brushing and rebounding are awesome for getting those lymph nodes draining and flowing properly.
Of course, the diet change is good and avoiding sugar, caffeine, and refined flour and food dyes and eating lots of raw organic vegetables.