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Daniel's avatar

I work in a Swiss Children’s Hospital. We use lidocaine cream or bandaids with topical anesthetics by a brand called EMLA for basically all our blood draws. They’re cheap, take 20min to work, and I’ve never seen a bad reaction to them so, pretty safe.

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petulantskeptic's avatar

There are a variety of topical lidocaine preparations with various properties that may be worth exploring. Most hospitals and clinics have them available.

Depending on the preparation it can be very superficial numbing or it can penetrate a bit deeper into the subcutaneous nerves and anesthetize at least as well as the iontopheresis with a lot less logistical work.

EMLA is probably the best known mixture but plenty of others exist. It takes about 30 minutes to numb to 1-2mm deep but if applied for 2-3 hours can reach depths of 5-6mm.

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