When you got sunburned as a kid, your mom might have broken out the big aerosol can of Solarcaine and sprayed you down. We're guessing it hurt like hell. That's because it contains lidocaine, a local anesthetic that at first stings the skin, then numbs it with the end goal of cooling it down. It tends to work, but Bowe cautions against using sprays, lotions, and creams with lidocaine or benzocaine (a similar chemical) because they can cause irritation and allergic reactions.
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