1. Never mix packaged food with cooked food.Choose one and preferably not packaged food.
2. Dietary products like curd, milk breakdown into lactose and cause skin allergies and hair shedding.
3.Grains like rice, wheat too cause skin allergies.
4.Meat is supposed to be the main diet of dogs so include more meats in diet and avoid all dairy products.
5.Change diet gradually so that he gets used to it.