My mother has a beagle thats about 10 years old. He has very swollen paws/feet that seem to be tender. He has had this off and on for awhile. She has taken him to 2 vets. They really don't know what it is, they just say its an internal fungal or bacterial infection of some kind thats causing it. Creams, ointments, etc. doesn't help I guess because its something internal. Anyone else have this problem or know what to do about it?