Psychic Nullifier (Fallout: New Vegas)

The psychic nullifier is a piece of headwear

Gameplay
A piece of headgear, with a chin strap to hold it in place. There is only one, belonging to the Forecaster underneath the 188 Trading Post. The young boy refers to it as his "medicine" which helps reduce headaches caused by his fortune telling.

Locations

 * 188 Trading Post