My puppy just completed 4 months and he has been shedding but recently his coat started to loose lot of hair especially on his back and he is itching and scratching a lot. Please let me know whether he will have his hair back and what type of coat he will have. I have attached some pictures. You can clearly see the difference between his head and back in the last picture. His itching started only 2 days ago and we started to put deck in our backyard 2 days ago and I believe he may be allergic to dust. But I am more concerned about his coat thinning. I am not sure its a puppy coat change or seasonal shedding or there is someting wrong with his coat. I see a lot of hair balls on the floor. He used to shed but not this much.
Thanks for your help
2 month old