http://en.wikipedia.org/wiki/Bromine


Bromine (pronounced /ˈbroʊmiːn/ or /ˈbroʊmɨn/), Greek: βρῶμος, brómos, meaning "stench (of he-goats)" [2]), is a chemical element with the symbol Br and atomic number 35. A halogen element, bromine is a reddish-brown volatile liquid at standard room temperature that is intermediate in reactivity between chlorine and iodine. Bromine vapors are corrosive and toxic. Approximately 556,000 metric tonnes were produced in 2007.[3] The main applications for bromine are in fire retardants and fine chemicals.

Yes, it will eventually disappear, once the bromine is out of your body.

http://www.azuregrackle.com/periodictable/table/35.html