I took Peterson to the vet today because my daughter was away. The vet could find nothing wrong with him. No fever, no congestion, no fleas. He said he doesn't think it is related to the liver disease but he doesn't want to ignore that either. He is eating good so that doesn't go with liver disease but he wants to be careful also. He said he thinks the hair loss is just because it is summer and it has been hot but I am not sure. the hair loss is mainly around his head and neck but his back seems fine. Anyway, he gave him a shot of antibiotic and gave him pills for 10 days and said to watch him and see what happens. So I guess we wait. Will keep you informed.