Originally Posted by cpx
since gel based ice-packs may not be allowed, you can borrow some
ice from the cabine crew.. or from a soda machine from the
airside food-court...
Gel filled freezer packs are allowed on if required.
"Passengers should only carry-on medications that are required to be available during their itinerary. This includes items like gel filled freezer packs or non-prescription liquid or gel medications, such as saline solution or KY-Jelly, required for medical necessity."