Hi
I have tried and liked a product called Comfort Zone. It worked to call the inappriate piddling. It did not have any odor to me and it comes in a wall plug in that in always on. I put it in my bedroom. Good luck.

Comfort Zone® for Dogs
Home > Comfort Zone® for Dogs

Comfort Zone® with D.A.P.® is an effective way to help control destructive behaviors, excessive barking, house soiling and other unwanted canine behavior.

Comfort Zone® with D.A.P.® helps comfort dogs in stressful situations, such as:

Being left alone
Visitors
New pet or family member
Moving to a new home
During thunderstorms and fireworks
Travel
Training and crating
Comfort Zone® helps alleviate stress-related behavior problems by mimicking dog-appeasing pheromones secreted by mother dogs after giving birth. These appeasing pheromones help reassure and comfort the puppies. Research has shown that the comforting properties of dog appeasing pheromones are effective on adult dogs as well. Click here to learn more about pheromones.

Comfort Zone® with D.A.P.® is available in two easy applications.

Comfort Zone® Diffuser with D.A.P.® –Provides continuous control in the home
Comfort Zone® Spray with D.A.P.® –-Portable for travel, crating and training