I was wondering if you had any info as to what may be the root cause of these little white devils. I've had them off and on ever since I was teenager and now that I started my bowel and parasite cleanse three weeks ago, I've had major flare ups of 4-5 cankers in my mouth at once! Oddly enough, when this happens I feel extreme fatigue and my anxiety returns. Could it be that parasites are to blame all along?