I heard you can put something on your hands and feet that dogs don't like and this helps train them not to bite. I have tried googling it, but have found nothing.

Does anyone know what this is?

Bitter Apple spray is what dogs usually don't like, but I have to say, I bought the stuff to spray on the furniture (It should be safe for skin ? Not sure)... and even just the aroma of it leaves a horrible wretched taste in your mouth all day long. But the bright side is Okami stopped trying to eat the furniture... so idk lol

I've had hand sanitizer recommended to me...

i will try that hand sanitizer since i have it here.. will let you know

I've used Bitter Apple on my pants, feet, and arms with some success.

Bitter Apple, Bitter Pear, Cheyenne Pepper, Vinegar. I'm sure the list can go on, but those are all safe possible deterrents. But like Lucy said, I don't know if I would put that stuff on me. Cause it makes you gag, but I used it without success on a lab who loves everything.

I use bitter apple, he wont even go anywhere near the bottle. My fiance uses it on his feet and hands (loki only bites his lol). It doesnt bother my senses, as long as you dont overdo it.

I spray bitter apple on my legs and pants like bug repellent it doednt seem to be that effective after it dries though then again I only spray a light bit