Yes I do. I buy the Indian powder from the Indian store down the street from me. i honestly do it all the time, only when I'm having scalp itches.
But I just add a teaspoon of Nettle powder to 1 cup of warm water. I pour this over my hair and I let it sit for 5 minutes then I rinse it out. I also follow with a deep conditioner becuase Indian powders are very drying for my hair.