Have you cut off the relaxed portion of your hair? Keep in mind that hair is dead and once it undergoes chemical and/or heat damage, it can't be "fixed", only temporarily mended using protein treatments.
Do you know your hair's properties (texture, porosity, etc)? This will help you figure out what your hair needs to be its healthiest: Live Curly Live Free - Curly Hair Basics
Keep in mind that if you still have some of your relaxed hair, it's porosity may be different from your natural un-relaxed growth.
Keep us posted and ask as many questions as you like!