The first time I took it I didn't know about the flush. I saw it recommended for inflammation and decided to try it. I took it, got in the truck to go somewhere and started flushing. It scared the crap out of me. I thought I was having an allergic reaction. I turned around and went home got in the internet nd found out about the flush. Whew!
For me the flush lessens after a few days on Nicotinic acid. Not very bad at all after a week, but yeah that first one!