If the licking is limited to one paw then this often suggests that the source of trouble is right there on the paw.
Dog licking foot pads.
When a dog s genetics make them prone to skin allergies the skin has a weaker protective barrier to the external world.
If the paw pad is cracked or inflamed it s likely your pup is suffering from either dry skin allergies or a flea bite.
If the paw pads and feet appear normal the licking could be due to a skin condition dermatitis which often is the result of bacterial problems allergies or food sensitivities.
This gnawing in turn often leads to irritation and swelling of the area.
Dogs frequently lick their paw pads as a reaction to the discomfort of their allergies whether to dust cleaning agents or anything else in their living spaces.
Apart from licking of the pads you might notice your poor pooch gnawing on them too.
Treat symptoms with an all natural balm or soaking bath.
If the paw pad is cut or bleeding then your dog is probably licking to clean the wound.