The Common Cold is an unlockable passive item.
Isaac appears sick.
Turns tears green and gives them a 25% chance to poison enemies for 2.5 seconds.
- When Hosts are poisoned, they will take damage only when they rise up to shoot.
- Knights/Selfless Knights can be poisoned from the front.
- Technology 2 - Every tick of the laser's damage will have a chance to poison enemies, and since Technology 2 has an extremely high fire rate, enemies will be poisoned more often.
- If you shoot at bombs, they will turn green, and the explosion will also be green, but the effect of the bomb stays the same.