Green cloud of poison

My charcter has been having this geen cloud of poison on her for several days now. Does anyone know how to get rid of it.
Thanks Suz

Quite simple really, you have to complete the follow up quest to the one where you drank from the chalice.

http://gw.gamewikis.org/wiki/Masters_of_Corruption

Why don't people actually read the text in the quests?

There's text&lore in GW? WTF?

Nah, He's just being an elitist prick. Everyone knows literacy isn't required to play guild wars

i dont care about reading quests and crap, but cant people at least read their damn effects bar?

You can also abandon the quest if you are not ready to do it right away.

Doesn't the collecters edition give u that?

No Issac, they already gave the explanation.