Hey everyone. I have a 7-month-old GS puppy who has been scratching constantly in the past month or so. The itchy areas include his armpits, belly, and around his genitals. I attached a few pictures below. He has been fed mainly chicken-based kibbles from Blue Wilderness and has been growing well on it. He's a picky eater, so I usually add chicken liver as a topper and give him cow milk on days he under-eats. He was started on chicken liver a few months prior to this issue, but cow milk is recent. I have stopped the milk but his issue still persists. Of note, I do notice he has some big bumps around his armpits but these seem to be unrelated to his diffuse itchiness. What can be possibly causing the itchiness and is this worth a trip to the vet ? Thanks !
Belly/between hindlegs:
Belly in close-up:
Armpits:
Belly/between hindlegs:
Belly in close-up:
Armpits: