Usually, psyllium is well tolerated, but, there is no guarantee of strength, purity or safety of products containing or claiming to contain psyllium. So, psyllium can cause allergic reaction, including rash, itching and shortness of breath. It can cause a severe anaphylactic reaction, too.

yea, I've read the facts on it. I'm actually looking for people that have had the actual experience themselves

My wife, (this is her account) has been getting hives on her face and chest and arms. Mostly on her mouth and eyes. It is triggered when she is exposed to sunlight and has been going on for a couple years. We just realized that she has been taking Metamucil with psyllium for the exact same time period. She discontinued taking Metamucil a week ago but has not yet gone out in the sun. She plans on giving her body a couple more weeks to get it out of her system before staying out in the sun to test the theory.

My husband stopped taking psylium tablets 3 days before taking his skin test with the allergist and what a surprise. By the second day he was no longer stuffy and slept great. He really doesn't need the allergist now that he knows what he is allergic to.