A photo that haunts me

The photo shown below was on a facebook friends page. He currently works with dogs in Vietnam. Since he shared this photo on his page and I cannot get it out of my head. It may be to disturbing for some viewers so don't say I didn't warn you.

This pup believe it or not is being treated for parvo. They are helping him. (or her) I am unsure why the vets there think this is an appropriate handing method for a 4 month old puppy. I'm also sure he'll be thrilled to go to a vet in the future. If this is help I'm afraid to see what they consider cruel or harsh. This photo makes my heart ache.