Has anyone seen anything like this?? It’s my 8 year old dachshund.

are you on facebook?

Essentially you need to use a third party hosting site, copy the location to here and add
tags to either end and it will show, even if a private fb photo for instance.
 
He has been to 3 vets and we even sent blood off to Cornell University for test and it came back fine. Gonna biopsy next

Ah you are in USA then! It could be so many things unfortunately, sounds like a biopsy might be the next place to go if skin scrapings for allergies etc haven’t come up with anything
 
He went to his normal vet last Friday evening and when he got home he was a little sluggish, took him to emergency vet and they did blood work didn’t find anything and he started to have bloody diarrhea, then the next day diarrhea was pretty much slowed down and these spots showed up on his stomach.and the next day it was worse and hasn’t changed now I’m 4 days
 
Never seen anything like this. My friends dachshund has developed skin allergies with age. He now can’t go on grass as it affects his skin making it raw and itchy. hopefully your vet will get to the bottom of it.
 
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