There is strange, white bump on my finger. It's very tiny but itchy and irritating. Wouldn't pop. Any idea what is it?

Anonymous
it looks like this. please help.
There is strange, white bump on my finger. It's very tiny but itchy and irritating. Wouldn't pop. Any idea what is it??
There is strange, white bump on my finger. It's very tiny but itchy and irritating. Wouldn't pop. Any idea what is it?
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