"Curly hair is typically dryer than straight hair. Pay careful attention to how you wash your curls and reap the benefits of healthy hair.
STEPS:
1. Know that you can wash your curly hair every day, but ideally you shouldn't wash it with a sulfate shampoo. Occasional non-sulfate shampooing and conditioner washing on a day-to-day basis is best. Visit this article for more information. If you still want to wash with shampoo try to limit it to no more than twice a week. On the other days just conditioner will suffice.
2. Find a good conditioner that adds moisture to hair. You can find them at drugstores, health food stores (organic conditioners are often very good), or specialty stores (such as Ulta or Sally's Beauty Supply). Try to find a conditioner without any silicones. Find out if your conditioner has any 'cones' by scanning the ingredients for items ending in -cone, -conol, -xane, and -one. Ingredients with PEG in front of them are okay however. Exceptions to the rule are benezophenone, a beneficial sunscreen and methylchloroisothiazolinone and methylisothiazolinone, preservatives.
3. Find a cheap conditioner that is also silicone free such as V05 or Suave naturals.
4. Rinse your hair with lukewarm water.
5. Apply as much of the cheap conditioner as needed to your scalp and massage with the tips of your fingers to remove dandruff and dirt that has accumulated. Rinse." wikiHow.com
Read the complete wikiHow article of steps at How to Wash Curly Hair - wikiHow.