I see now some problem
on the left rear
foot, now three out of four. I looked because I saw him working
on the left rear foot. He just likes to lick. He doesn't try to lick people, but I often see him licking hard surfaces, metal legs on a glass coffee table, or a wood door frame... strange dog.
He is allowed outside with all types of grass and weeds, but in NJ it is mostly frozen now - seems that would not foster much to be allergic to.