When your scalp is itchy and white flakes are visible in your hair, you may wonder whether you have lice or dandruff. Their symptoms can overlap, making it hard to tell them apart. Head lice are ...

Dandruff, psoriasis, eczema, and head lice are common causes of an itchy scalp ... which eventually flake off into the hair, resulting in visible dandruff and an itchy scalp.

Washing your hair often can also help reduce oil buildup ... a doctor may recommend a different lice medication. Dandruff is a common condition caused by yeast overgrowth on the scalp.