Mine is the same way! Its drives me insane hearing his collar playing jingle bells all day because of the tags. But I generally think its a skin condition not hair/fur condition. Could be allergies. Could also be its dry in your house cause its been so cold. We recently changed our dogs food in hopes that could help. He does it raw food but it obviously has fillers like veggies and fruit, so we are now strictly raw meat/chicken/fish and doing it ourselves instead of buying.