I had a very bad experience with my 7 months old black boy. And now I wish I had been paying more attention to the signs. One of the big ones for me was him suddenly not letting me touch his back. Lack of appetite, no more rolling around and laying on his back....
There had been something bad cooking for a while under that coat.
His back opened up all across as if someone took a knife and slit it.....I was devastated.
Took him to the vet, got biotics and spray and other stuff....vet thought it was not contagious. (And none of us caught anything eventually)
Now it healed up, thank God! I thought I'll lose him for a moment. But there is a long scar across his back inch wide and no hair has yet grown back on it.
If the fur looks kinda rigid and messy and no shine, if there are scabs, get help fast.
I actually did not see the infection untill the skin started opening up. It was skin deep..
Now as for what happened , still no diagnose. It could be one of these few or all combined..
Bad food allergy that finally manifested to that extent
Being exposed to Texas sun unexpectedly and getting dehydrated due to that
Getting injured in the baggage department while flying from tx to va, that I have no evidence of...
Something toxic being spryed on him during flight....when I first let him out of the crate he had a glue like substance on him which I did not think much of at a time, unfortunately...
Some crazy skin condition or dna problem I have not heard of...
Rosco was a true soldier the whole time. I am so proud of my boy
Anyway...this was a nightmare and I learned to see beneath he coat from this...
I hope it works out and your dog is ok!