The smell, however, comes from hydrogen sulfide (sulfur), and this is the secret to getting rid of the smell. Light a match and then blow it out. Knowing all this, and the fact that gasses will expand to fill any space, the best thing you can do (though it's not easy in an elevator) is to simply light a match.
Symptoms of giardiasis tummy pain or cramps. farting (flatulence) smelly burps – they may smell like eggs. bloating.