She used gas and air during labour to ease the pain.
gas and air
idiomAn equal mixture of nitrous oxide and oxygen, used as a mild analgesic and anaesthetic, particularly during childbirth, for dental procedures, and in emergency medicine.
The dentist offered him gas and air to stay calm while she pulled the tooth.
In the cramped ambulance, the paramedic administered gas and air to the injured cyclist, whose wrist hung at an unnatural angle.
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air one's dirty laundry in public
To reveal one's sordid secrets to the public.
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air one's dirty linen in public
Synonym of air one's dirty laundry in public.
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air out
To expose to air; to leave open or spread out, as to allow odor or moisture to dissipate.
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air rage
Aggressive, disruptive behaviour on an aircraft.
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air sandwich
A strategy that has high-level direction and low-level operations, but little in the middle.
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blow hot air
To engage in empty or exaggerated talk that lacks substance, credibility, or truth; to bluster.
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breath of fresh air
Something relieving, refreshing, or new.
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build castles in the air
To have any desire, idea, or plan that is unlikely to be realized; to imagine visionary projects or schemes; to have an idle fancy or a pipe dream; to daydream.