★★★★★
My wife's grandmother, when in her early 70s, had had chronic shingles for a couple of years. Kroger started carrying acidophilus milk. She started buying it once a month, and each time would be shingles free for a week. She started buying it twice a month, and would then be shingles free for 2 weeks out of each month.
Finally, she found she could buy acidophilus in capsules, and as long as she continued to take them she had no more shingles.