Potion

Uncommon

When you drink this potion, you become sick with mane
disease for 1d12 hours. While sick in this way, your nose
becomes runny and your eyes watery, causing you to have
disadvantage on Wisdom (Perception) checks that rely on
sight. However, your relatively mild sickness also boosts your
immune system, giving you advantage on Constitution saving
throws against being poisoned and other diseases. This
potion is a pale grey color with a string of liquid in it that
resembles watery mucus.

Cost: 100 gp