Secret room and poisonous lava

Poisonous lava can be found in a secret room in a nether fortress poisonous lava can also be found in the middle of lava pools. Poisonous lava can poison you. You can also be poisoned when you get out and depending on how long you been the longer your poisoned when you get out. You can pick up poisonous lava with a bucket. Also in order to get into the secret room you have to flick a lever that opens up the door and in the secret room there’s poisonous lava and full of loot.