Hi!
I read it wasn't ok to change his diet on the first days, so I only offered him the Chinchilla proper food, the one you buy properly for them. It's pelleted. He was already eating that one, according to the person that was "taking care" of him. And new Alfalfa, but the same brand he used to eat, and it ate a little bit of it. And clean water. I offered him a bath today, but he wasn't interested. He is curious about me, so I keep talking to him, I sit in front of the cage, open the cage, show him my hand so he can smell it... I'm not trying to grab him so I won't traumatize him in this first days. I'm patient and caring. Hamsters sometimes are hard to get your confidence too and I had many hamsters for about 6 years now. The tail is normal, I can't notice any problem in the tail, it's beautiful and full. I managed to take this picture now, I think it's easy to notice now the problem. I tried to see if he is chewing the fur, but I think he is only itching a lot, not chewing, he is not grabbing and eating. And I can't see fur on the cage, when I got him he was already without the fur, so I think it's not falling anymore, but still itching. Thank you so much for your help, I hope the picture can show the problem properly!