I have notice that my mini pin did not poop for days now. He had been sick lately. The doctor can't identify what's wrong with him. What medicine should I give him so he would poop?

Try giving apple.. Also - if the mini hasn't pooped in days he may be in a lot of trouble. The body is too little to take the hit. Go to another Vet..

You can feed a tablespoon of raw pumpkin followed by a tablespoon of yogurt.. But honestly, since he's been sick, I'd speak with your vet first.

Find a new vet. A constipated dog is nothing to say "oh well" about.

Milk youghurt and pumpkin can help but if I were you id seek help from a vet fast.

No milk please, it can give her diarrhea. Yogurt, pumpkin and canned sweet potato are fine. A trip to another vet is likely your best bet.