Years ago I did the full H2O2 (Hydrogen-Peroxid) cleanse up to 25 drops 3 times a day. It was really rude tasting by the time I hit the 20 drop mark. Also by the 20 drop mark, I had a major sinus healing crisis and what appeared to others as a major "cold". I was coughing up sputum from years of smoking so often that I had to carry a little cup with me to expectorate in, and I had to carry a box of kleenex to constantly blow my nose. Funny thing about it was that I had great energy and did not "feel' like I had a cold. I just had the symptoms of a cold. The "cold' lasted two days and after that I felt better than ever. I now know that the head detox part of this 'cold' was a lot of mercury coming out from having had a lot of metal fillings. When I had them removed, my sinus problems vanished forever.