The season of dandruff seems to be never over. Although most people associate dandruff with the winter season, for some it continues throughout the year. Some of the most prominent causes of dandruff are dry scalp, inflammation in the skin, sensitivity to shampoos and other hair products and oily skin.Dandruff is also caused by underlying skin conditions like eczema or psoriasis. Another interesting factor that causes dandruff is sensitivity to yeast. Other causes include improper or irregular hair washing. Here are some exclusive DIY homemade dandruff treatments that have no side effects and cost few pennies. These treatments can be prepared with readily available materials.