Red Spots On Potatoes My 4 Month French Bulldog Puppy Itching – Food Allergies?

My 4 month French Bulldog puppy itching – food allergies? - red spots on potatoes

I Feed my French Bulldog Puppies 4 months Natural Balance duck and potato. I noticed that his hind legs and lower abdomen area scratches quite frequently. He has a couple of small red spots on her belly. Could a food allergy or fleas? I thoroughly cleaned my house, and recently, a bathroom and to his coat and found no trace of bullets.

The grocery store pet should the welfare of deer + Rice meals. Has anyone suggestions of good food allergies or other ideas?

Thank you!