Mixed babies

So my son is 3 and a half months i am white and his father is black his hair is already getting curly and course im a hair dressed and i wirk with all types of hair but i have no idea what to do about his hair its so dry i dont wash everyday and i make sure i brush or comb it but does anybody know of anything i could use to moisturize his hair or know of anything i could be doing to cause this😬