What to use to wash dreads?

I got dreadlocks about two weeks ago and I'm a little bit confused about what to use to wash them. I read on here about the baking soda wash but teatree oil is so expensive and I can't find rosemary or lavender oil anywhere. I have been using a Burt's Bee's rosemary shampoo bar. I went to a little shop in my town today and there were these homemade soaps and there were all sorts of different kinds like unscented oatmeal soap, hemp soap, lemon soap, lavender soap, and a whole bunch of other soaps that looked really good and I was wondering if it would be abad idea to use that on my hair?

I'm sorry if this is a stupid question.

Also, my scalp is a bit itchy. What can I do about that?

updated by @maddy: 01/13/15 08:55:35PM

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30 in oils (i use 4 or 5 diferent oils) will last me 6 months about sometimes less but long time

dr bronners is next best thibgeatree isnt expensive since u use just drops it will last many months

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My new book Ban The Taboo Vol 1

I use the baking soda wash without oils.

my last message got scrambled u can use bs without oils (shiuld use the vinager tho) but the oils are nit alot since they last months


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My new book Ban The Taboo Vol 1

Thank you everyone. (: I thnk I will try the baking soda wash without oils. How much vinegar should I mix in with it?

Thank you very very much! I'll use it first thing tomorrow when I shower for school. (: What is ACV?