You actually pour the mixture onto your scalp. Here is the recipe: Mix 1/2 cup baking soda with 5 cups water and pour DIRECTLY onto your scalp.... Let it sit for 10-20 minutes...then rinse it out well. Next you will mix 1 capful of apple cider vinegar to 5 cups water...pour on head and rinse within one minute. For the first time, I suggest a deep cleanse, so leave the BS on for 20 minutes.
There are a couple of ways to remove wax. The first one is for Wax B Gone:
http://www.dreadlockssite.com/page/dread-wax-removal-is-finally
Read the answer by Baba Fats to this post: this is for using Dawn Dish Soap for wax removal
http://www.dreadlockssite.com/forum/topics/wax-removal-7