If you don't want to sulfate wash again, use a low poo that contains coco betaine, and that should get them out. I have to do that from time to time even though the only cones I use are water soluble. Don't worry about it, it'll be fine.
-3a/3b, fine, very thick, normal por., normal elast., long, dye- free (CG since Nov. '11)
-CO: every other night (air dry) VO5 (various scents)
-Low poo (1 or 2 times a week as needed): ION Color Defense Clarifying or Giovanni TTTT
-RO: GVP CB
-LI: Giovanni DLI or a tiny bit of VO5 (my co wash)
-Styling: BYZ Noodle Head Tame your Curls Mousse
-PT: ION Effective Care