Does magnesium citrate cause your stool to burn your anal area? I drank three bottle over five days to soften my stool due to hemorrhoids and now my anal area burns almost constantly-it s especially after movements when I m having an episode of severe pain due to the hemorrhoids. It feels like the area is being pulled and twisted with a throbbing pain. I get the seversme pain after every movement and if I stand for a long period of time.