Use a conditioning oil or condition for pre-shampoo and then apply it on your dry hair. It will prevent unnecessary damage and roughness during the process of shampooing, particularly is the hair is snarled or tangled.
You do not have to shampoo curly as frequently you shampoo straight hair. If you shampoo often, it will stress and stretch fragile hair strands and also dry the thirsty curls.
Make sure that you use a mild shampoo and a cleansing conditioner that has low-lather and will refresh the scalp and hair without stripping it off the natural oil and moisture.
Apply shampoo to that one section and then wash it thoroughly. Do this with the other section. Make sure that you rinse the hair section by section.
Cold water shampooing or rinsing might not give a luxurious hair wash experience. However, it can shut the cuticle. This, in turn, will lock the moisture.
After you shampoo, you need to apply a conditioner. In case your hair is dry, you should go for the one that has humectants such as glycerin or glycol.
You need to comb with care and use snag-free and seamless combs. It is important that you invest in the best quality comb. Make sure that you do not rake or pull while combing.