Below is a link stating the top 10 most read articles by MS Weekly News. I found them all interesting, but one stood out. It said that there might be a correlation between taking Tecfidera and shingles. After a fall in December of 2015, I thought I had rug burns on my back. It took a couple of days, but then the shingles started to appear. Let me be one that says shingles are horrible. I thought my pain would never end. It did of course, but it was a tough road. I was taking Tecfidera at the time. I eventually was taken off due to my white blood cell count bottoming out. Which may also be linked to the shingles. Anyway you look at it, it was a bad experience!!