My puppy is 4 months old is my very first puppy so im super new to this....we are currently feeding him Wellness core puppy formula (grain-free) (dry food)... i think i need to change his food because he has itchy skin, his coat is dry and his belly is getting darker (vet says it is normal pigmentation but i also read the it may be a reaction to the food).
I dont know what to do, like i said is my first puppy and im kind of lost do you have any recommendations??