Hi Pum, my 11 yr old niece has shingles, her mom gets outbreaks all the time, seems its a virus thats always in your system I have the virus that causes shingles in my body also, it seems chicken pox herpes, shingles, and my condition, Meneires, are all related. I probably got my virus from doing daycare and being exposed to the chicken pox vaccine. I was on an antiviral drug for 3 months, (experimental study done by the ear institute) and i felt so good, od course now that I am done the trial, i feel like crap again some days., i would much rather have an occasional outbreak of shingles then side effects i get with meneries. I think your MIL will get better faster if she takes the anti viral med, I know it worked well for me!