I say nay to all lidocain based products. Absolutely and utterly nay. Aloe and tea tree oil both have extensive apocrophal and some scientific evidence to support them, but any burn that you are going to treat with first aid the lidocain is just there to keep you from sniffling. Yes, burns hurt, the worst pain I've ever felt, but my concern is that the loss of sensation lets you ignore things like additional abrasions and lacerations. I'd rather it hurt like hell and know if I"ve further damaging the tissue than be comfortably numb. I'd rather just cool it, and keep the skin hydrated.

Then again, I'm still trying to convince the docs that I should have an epi-pen because of the world's love of lidocain and benzocain. My reaction to the stuff feels LIKE a burn, so I might not be the least biased voice. :P