Nidhogg's Gifts
Offerings to the Dragon
Nidhogg cleans up rot. As such, she is there to devour nasty things in one's self, both physical (like necrosis and certain types of cancer) and emotional (like long-buried festering resentments) and situational (like nasty mold or rotting foundations in a house). Like all the rot-Gods, she is there to take away your garbage, but you have to be willing to give it to her. She's slow and not very aggressive, and has better things to do than to chase you, so if you aren't 100% behind the idea, she'll shrug and be off.
She is also a patron of anyone whose job is to clean up the environment, because she represents Nature's ability to clean up our pollution, which is considerable (although not infinite). Calling Nidhogg into an environmental issue can help clean it up faster ... if you pay for it with more cleaning, elsewhere. To propitiate Nidhogg, spend a day without throwing anything away. That includes your bodily wastes - give them all back to the Earth. Burn or reuse any wrappers, or just don't use them. This is her price - for one day, act like you understand that there is no such place as away.
Nidhogg is also an ordeal-giver, and is one of the great powers of Cold, and can be invoked to survive hypothermic conditions.
Artwork by Ruth Taylor.