Never hear of it. I'v been flashing for 20 years, guess it's a fact of life. I did try a couple of things. I was on something, but forgot what for several years. I tried a natural product for a while too. I like the natural product, forgot the name of it to. The best thing about it was it helped my veritgo. I flash and DH is cold. The only thing we fight about is the temp in the house.