Hello and a few questions.
Introduce Yourself
For washing, at the beginning, do it every 2-3 days. Forming dreads love clean hair. If you do not have any dread shampoo, then use this home made recipe which is a no scrub method.
Mix 1/2 cup baking soda (BS) with 5 cups water...pour on head and leave on 10-20 minutes...rinse well. This will exfoliate the scalp, leaving it nice and clean. Next you must balance the PH in your hair from using the BS. Mix 1 capful of Apple cider Vinegar (ACV) to 5 cups water...pour on head and leave on for no more than 1 minute...rinse well. The ACV conditions the hair safely without causing knots to slip out....Finish off with a cold rinse. This got me through my first year, just washing this way.
Peace