itching and scratching the scalp

I know this question might be silly, but I’m a little concerned. Some nights I find myself waking up from my sleep while itching my scalp really hard, like nails digging in a little in my scalp. Nothing too intense of course, but just enough to have some flakes peeling off. I’m kind of freaking out that I’m causing some bad damage to my scalp. I was looking for input from people knowledgeable on...

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