My Maltese does the same thing!  And neutering him made no difference at all.  He seems to go in spurts.  There are days and days that he doesn't mark anything and others when he lifts his leg all over the house.  It's so dang frustrating!!  I never heard about the licorice thing but I'm willing to try anything.  I do have belly bands but he only tends to mark when we are away from home so I hestitate to put them on him when we are not home.  I hate to confine him while his sister has the run of the house but I'm getting desperate.  We are getting our third dog in 9 days and I can only imagine how much more he's going to want to 'mark' his territory.  
 
If we had had Biscuit neutered BEFORE he started lifting his leg, he probably nevery would have started (according to the vet) but we didn't so now we are paying the price.  So for all of you out there with male puppies, get them neutered EARLY so they don't destroy your house!!
