not care at all; not be bothered in the slightest
Idiomatic expression meaning to be completely untroubled or unaffected by something, as if it were as trivial as a mosquito bite. Often used in negative constructions.
He seemed completely unfazed by the criticism.
That person doesn't seem to care about failure at all.
Standard kanji form of the expression.
Variant using 程 instead of ほど; less common but acceptable.
Literally 'not even think of it as much as a mosquito bite'. The phrase uses the image of a mosquito bite as something trivial to express complete indifference.