Let me add a word of warning to this post, trying to do a alfa roll on any thing other then a puppy gets many people bit in the face.  No one unless they are an experienced dog handler should ever try that on their own dog.  

I would be interested in what your vet has told you in regards to you dogs problems.  I have a dog with bad hip and have been treating him with supplements and he is doing great.  The same dog also has flea alergy and again the right supplements has cleared up his skin and we haven't had anymore breakouts.  I would also like to ...

No, but if you think about it, leather is made out of animal hide and not meant to float around in water. 

I don't have any idea as to what information you are looking for or what type of problem you are having.  Are you wondering what type of products to treat the dog, home or yard?  It's hard to know how to respond when we don't know what the question is.

You can buy an e-collar with the pager function, when you press the pager button the dog will feel a vibration.  Starting with the dog on a leash, press the pager and when the dog looks at you, reward it with a treat.  Once the dog is consistant on a leash, you can put it on a long line and start working on distance.  For example, 3 ...