Horse person here, been using for years, any moisture will remove stain / finish on wood. ie coffee cup rings.
The one warning with ivermectin that I heard years ago is keep it away from dogs. I have no sauce, but was told to dispose of tubes safely so dog cannot lick it, I was told it could kill them. I have always adhered to that rule. My dogs and cats get different wormer. So in case this is true, keep ivermectin away from your pets.