Hi there! Our baby Basset Hound is coming up on 4 months old and I have noticed the hair on his ears and top of his head are thinning. He has had some sinus congestion this past week and so he has been on antibacterial, so was wondering if this could have caused the hair loss. But I have also heard that puppies can shed their baby coat to grow in their fuller and thicker adult coat. I am hoping that is what is going on, and I will bring this up at his next Vet checkup in 3 days. It sounds like our pups are super close in age, so maybe it is normal? Im hoping so for us all❤