The difference between the ruling on swallowing sputum and its effect on the fast, and swallowing a pebble

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Is the fast invalidated by swallowing phlegm or sticking one’s finger in one’s ear?
If he swallows bits of his skin, does that invalidate his fast?

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Her father smokes surreptitiously during the day in Ramadan, and she does not know what to do
Is the fast invalidated by swallowing phlegm or sticking one’s finger in one’s ear?
If he swallows bits of his skin, does that invalidate his fast?

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