What could happen if you took a bath in benzocaine?

Benzocaine Bath? Hello. What would you be attempting to treat by bathing (lathering your skin) in benzocaine? Some side effects: headache, confusion; fast heart rate, swelling, redness, blisters, feeling light-headed or short of breath. Pale, blue, or gray appearance of your skin, lips, or fingernails and hives; Skin changes and hives REQUIRE immediate medical attention.