sometimes itchy
有时痒
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Sometimes the scalp is red or itchy and feels tense. The hair has a dull appearance.
有时头皮呈红色，发痒或发紧，头发暗无生气。
youdao
Sometimes the sc alp is red or itchy and feels tense. Thair has a dull appearance.
This is often intensely itchy and sometimes spreads to the back of your neck or your back (depending on the length of your hair).
CNN: Why is my scalp so itchy?
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