Washing with the Dr.
Dread Maintenance
I fill glass/plastic bottles with warm water, then add a glob of peppermint scented dr bronners... then I add Tea Tree Oil, peppermint oil, and lavender oil, shake it up and then when I'm in the shower I squirt the mixture over my scalp all the way to my ends and massage my scalp and dreads with my finger tips. I let it sit for the entire time I'm in the shower, and when I'm ready to get out I rinse my hair really well with cold water (as cold as I can stand anyways)
It works well for me so far, and it smells AMAZING.