To promote proper functioning of the third eye and promote excretion of fluoride, apply the powder externally. It can be rubbed into the forehead, especially just above the nose and between the eyebrows but on the entire forehead. It can also be made into a water paste and applied moist. It will stain so be prepared for this on pillow cases! Also, even though most of the turmeric will wash off, there will be some lingering yellow stain for some time after use.
The length of time required for doing this nightly routine depends on your exposure. For most people, this is also age-related since the effects of the exposure are cumulative. Therefore, younger people may complete the detoxification in two weeks whereas middle aged people may require three to four weeks to achieve the same results and elderly people may need to continue for a month or two.
This powder can, of course, be used for cooking. Turmeric protects oils from becoming rancid so the powder can be added to oils that will be used in the preparation of curry dishes and other culinary delights where the unique flavor is desired.