What Is The Treatment For Shingles?

I get a breakout of shingles three to four times a year. I have had the shot for shingles but still get the breakout of blisters and soreness according to my Dr. is the shingles. My question is why do I keep getting a breakout of the shingles? I am not stressed out I just retired after 30 years of working and I've neve been more relaxed. Is there anything I can take to stop this recurring of shingles?