Though dandruff usually isn’t a serious medical condition, it's very common and can be uncomfortable or even painful. Plus, dandruff isn’t good for your scalp or hair health. The obvious signs of dandruff are crusty-looking scales or painful itching. Reaching for a dandruff shampoo is typically the first step—and the most effective way, according to the American Academy of Dermatology—to control the condition. Read the complete article here.