I'm sorry I didn't clarify- it was ok with the owners to give him Benadryl. And like I said, I wouldn't use a shock collar on him for various reasons.

Thanks for the comments- I got in touch with the owners and they actually had their daughter come get him. I'm now doing house visits to their home twice a day to give him shots and feed him while their daughter and grandson watch him. When I stopped by this afternoon the grandson told me this dog barks nonstop at home too. So I don't feel as crazy! This is a pre existing problem that I was not warned about. It's resolved now because they had a backup plan of family members at home, but hopefully they will learn to let any future sitter know about any problems!

I have contacted them. Still awaiting reply. Sadly the only room my apt has I can contain him in is my bedroom which shares a wall with my neighbors and I don't want to subject them to his non stop barking. I don't understand how Benadryl does nothing to this dog! It knocks ME out! Lol

Hey- I've spent some time searching the questions but can't seem to find my exact situation so I figured I would put it out there.

I am watching a 14 year old partially blind diabetic yorkie at the moment. I have had him since Saturday morning, its now Monday almost 1 am. I had thought he would calm down by now but he hasn't. I am really struggling a lot with him. He barks NON stop. It does not seem to have anything to do with whether he is alone or with me, being touched or not being touched, hungry or having to potty or has just eaten or gone out.. I can find nothing to alleviate his barking and nothing that seems to really cause it exactly. He honestly doesn't even seem anxious or anything! just sitting there barking over and over and over and over... Sometimes he goes totally quiet for an hour or so (if he falls asleep- which is rare) but most of the time he is just non stop barking.

I'm kind of losing my cool here. I have tried giving him benadryl and most of the time it does absolutely nothing. besides, I wouldn't want to have him constantly drugged. I have a shock bark collar for my large 40lb dog but I don't feel comfortable putting it on a tiny elderly yorkie. Does anyone have any other suggestions or at least advice about either controlling the barking (PLEASE! I can't get any sleep and I'm sure my neighbors can't either!) or advice about what to say to the owners? They are so incredibly sweet and I have him for another 5 days.