Hay Fever is a mechanic introduced in the Lush Season of the Hamlet DLC. The effect will start 1-2 days upon the turn of the season and end on the second day of the Temperate Season, both changes are indicated by a character quote. When the player is first beginning to feel the effects of Hay Fever, the edges of the screen will begin flickering, getting brighter over time and revealing a yellowish-red pattern of leaves and flowers. After approximately 60 seconds, this pattern will creep toward the center of the screen, and upon reaching the center the player will sneeze, often twice in a row. Sneezes stun the player briefly, drain 2.5 sanity per sneeze and cause 0-4 items to fall out of the player's inventory per sneeze.
Ways to negate Hay Fever include:
- Wearing a Gas Mask.
- Eating (raw or cooked) Seed Pods, Nettles or Nettle Rolls.
- Being near a working Oscillating Fan.