A free mod for Fallout 4, by dphile.
This is a mod to help fix a bug in the game, wherein if a player is at a disadvantage due to Med-X, and he is also a victim of the Stingwing or Radscorpion poison, then his perception is permanently -5. This is a temporary measure, and it cannot "fix" the bug for him.
I have found that players are often unable to realize that they are suffering from the poison and that their perception is lower than it should be. For that purpose, I have created a mod to help prevent this bug from happening to your character.