According to the Florida Poison Information Center in Miami, stings from lionfish can be serious, and should not be taken lightly. Any broken spines should be removed, if possible, and the affected area exposed to heat (100-114 degrees F. or 38-46 degrees C.) for 15-20 minutes. Lionfish venom contains proteins that are denatured by heat, thus preventing them from spreading in the bloodstream.
Heat Wave Instant Reusable Hand Warmers are the leading instant hand warmers to the lionfish hunting industry. They can easily be activated underwater and keep your stung area under intense heat for more than 20 minutes.