Hi. colonic is much more effective than enema so if you can afford it go for the colonic. Use the days before to prepare your colon by doing a lot of fresh fruit and vegetable juice (in a juicer not shop bought), and staying away from heavy, binding food. That way the colonic will take quicker and get more rubbish out. Ask their advice when you book the colonic but I'm sure it will be the right thing to do. Good luck.