It'll clear your throat right up.
I'm not necessarily sure what a Burnt Mexican means...but I do know what it did to my sinuses.
While searching for this week's shot, I peaked into my depleted liquor cabinet. It seriously needs work. My turn for this Friday's poison was relegated to anything that called for tequila, spiced rum or Citadelle gin. I went with my trusty Mexican partner in crime and decided to concoct a Burnt Mexican (found here). I ditched Tabasco for Dan's Prime XXX Habanero sauce. The sauce sank directly to the bottom of the shot class and resulted in a serious kick to the throat.
Even so, I'd recommend this over any antihistamine.