I wouldn't say either of those. The first suggestion that occurs to me is "If an ant bites you, you feel a stinging sensation", but there may be a slightly neater way.
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lucas21cHow about"If an ant bites you, it will make you smart for a moment"?Yes, that is correct English. Personally, because of the dual meaning of "make you smart" ("make you sting" or "make you clever"), I would probably avoid it, even though there is no real danger of misunderstanding. Other people may not have any issue with this.