I work them out like any other muscle group. I've tried a number of routine through the years, and this is what has given me my best results.
try burning them once, maybe twice a week, with enough healing time between them. Don't go fior the marathon number of reps. Again, try treating them as any other muscle group in your routine, and do the same number of sets and reps. give it some time, and you'll see the difference in results.