I love DSMO! It eased my fibromyalgia-related aching, stiffness and fatigue very considerably! I even had bursts of energy allowing me to tear around the house like a little cyclone to do chores, without having to crash the next day, I drank 4 ml per day, diluted in a large glass of distilled water every day. Tastes awful, like gas you put in your car, I guess. But It also helped my irritable bowel syndrome. I also diluted a couple of cc in same amount of distilled water, dipped a cotton make-up pad in it, grabbed that with mini kitchen tongs, and painted my sore areas, like right side of my back and shoulder, once daily.. Only side effect was some temporary itchiness on the treated skin for an hour or so afterwards, and a rash when I applied it to my forehead. But no biggie. Also mild nausea initially right after drinking it. I loved what DMSO did for my well-being!! Only thing is, my husband couldn’t tolerate the bad breath it brought, “ like a mix between molasses and corpse”. Unfortunately, he has super-smell abilities, he’s like a hound dog. So, couldn’t work around that. I gotta be able to kiss my husband! Even after 41 years together ❤️! Anyhow I had to quit taking it a couple of days ago. He can still smell it on me, but getting better. Overall I took it for a week and felt better from day#1. Gosh, I wish I had known about DMSO decades ago! So now I ordered my first batch of MSM, a derivative of DMSO, that’s not supposed to give you bad breath, but otherwise I hope for the same results as DMSO. I would definitely have continued taking DMSO otherwise!!! I felt half my age by the time I had to quit. I would definitely 100% recommend to try DMSO for fibromyalgia and whatever else it’s supposed to be good for!