Sorry to hear this, but have you checked your mineral ratios with a hair mineral and trace elements analysis? From my viewpoint and hearing your story you should def. check it out, if you are following a mostly vegetarian diet and do a lot of gung-ho cleansing, your body probably is in starvation mode. Remember that now that you are finished with the dirty job (cleansing and purging), you have to build up your body again. Iodine is great, but there could be other wacked up mineral ratios causing the acne. Copper toxicity and zinc deficiency will mess up hormones, skin, mental stability, etc. I don't know your diet or anything, but I would assume that if you are mostly vegan or vegetarian your body is starving for zinc. The best way to do this, is to contact a practitioner that does hair mineral analysis (trace elements inc. or analytical research labs, inc preferably) and get an assessment on your current status. I really urge you to do this. It could be a great door-opener to your problems.
I think lots of people could benefit from this, full cleansing is great and relieves the body from toxicity, but it will not normalize every bodily function. For hormones and the endocrine system to function well (mainly responsible for excess sebum production) they need well-balanced mineral ratios. Cleansing can correct some of this, but without corrective supplementation it is hard for the body to regain momentum. Many supplements are also very estrogenic (like evening primrose oil, spirulina, flax, soy, etc.) and can interfere with mineral levels. Since estrogen and copper are closely tied to each other, you probably need to avoid many supplements, IF it shows up that you have to much copper.
(my english is not too good at explaining this so check out some of the links..)