I just finished HH Hell, and would like to help others finish it! Here's some good tips that would help you finish it faster
A: Before entering drink a Benten's Blessing (Bentens blessing gives resolute, which is basically an extra Single dodge) sake drink.
B: Get someone from your team to Rapid storm before entering, it still applies in the dungeon.

I thought any liquor effect got reset once you get in the haunted house

Most do, but it seems that the Bentens Blessing Resolute stays on your character, but its not the same case for Moth Orchid