MiraLax Side Effects: I really don't know if Miralax is causing this side effect but I http://www.medications.com/effect/view/25639 I really don't know if Miralax is causing this side effect but I have been on Miralax for 3 years and then starting having problems with sores, burning and salty mouth. I had the sore removed by an oral surgeon and it came back as chronic inflammatory mouth I've had the burning mouth thing since my gallbladder was removed Tue, 11 Aug 2009 19:08:34 -0400 http://www.medications.com/effect/view/25639?item=22196 I've had the burning mouth thing since my gallbladder was removed.Blood work showed I have H Pylori bacteria in my stomach and I'm guzzling miralax for tomorrows tubing.I'm 45 and starting menopausal symptoms and that is said to be one of them.I hope somet http://www.medications.com/effect/view/25639?item=22196