Assertion: dandruff's scalp | /r/HasSubevent | itch
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Source sentences:
text: The fungus feeds off the skin’s sebum and excretes end products onto the scalp which can irritate the scalp skin, resulting in dandruff and its symptoms like dryness, itch, and flaking,” says Dr. Rolanda J. Wilkerson, Ph.D., a principal scientist for Procter and Gamble.