Delite - thanks for the update.
It is reported in the main info's on DMSO that 99% would likely cause skin irritation, and that the 99% has been reported to be not as effective as the diluted versions. As I said (and I agree with Mac) that the 70% dilution is suitable. If you need any verification, I will dig up my references.
As Jim says in the books, if you hammer your body with detox, at some stage you will experience and effect, either tiredness of herx. So go easy on yourself, AND please focus on the best nutrition you can manage. My main advice to all my support group is that they move as close to a vegan diet as they can get, with sourcing organic foods if at all possible.