Licking his paw

Polo has been wearing the 'cone of shame' these last ten days.  He has been licking his right front paw for some time (not the first time) so the vet clipped some hair away between his toes and found a cyst. Antibiotics have been administered and the foot is a lot better, but he is still licking, hence continued use of the head cone to stop him.

Any suggestions as to what else we can do?  Polo is a six year old Bolognese (similar to a Bichon but much more handsome)...