Deaar Sandra,
I am so sorry your new boy is not feeling well.
He may have ingested non food or have a bad tooth or someting stuck in his mouth.Check inside for any abnormaliies.
He may also have an upset tummy or canine flu:
http://www.thepetcenter.com/gen/canineinfluenza.html
If you think it is allergic he may have one mg of benedryl for every lb of his weight.
For an upset tummy pepto or any OTC @ www.wolfdancer.org/health scroll down for products and dosages.
His throat my be scratchy I would pick up any dog food.Try a small amount of boiled chicken with all fat drained off, cottage cheese, baby food with no onion, beef, turkey, etc
Add unflavored pedialyte to his water 50/50 to hydrate him and balance his electrolytes.
Put a drop of pancake syrup on his tongue to raise his blood sugar in case he is a bit hypoglycemic. Do not allow him to drink a lot at a time If he throws up water, he can lick ice Keep him on that very light diet of boiled chicken or cottage cheese for 48 hours. Also give him one teaspoon a day of plain yogurt to keep "good" bacteria in his system.
He should see the vet if he gets worse or developes any breathing difficulties.
I hope I have covered every possibility. Please let know if you still have questions and how your baby is doing, I will always be here for both of you.
I hope he feels better very soon.
Happy Easter!
Very sincerely,
Terri
Healthcare Expert
Expert in canine health and behavior. 20 years of experience with dogs