I have taken mebendazole a month ago. I excreted feces with white stuffs that I believe must be parasites. I feel relatively better due to reduced gas, bloating, and intermittent of diarrhea and constipation. Currently, my symptoms above are back again, which are making me miserable. I just took penicillin due to itch around my anus. I had a bowel movement later after drinking Starbucks coffee and saw something unusual in my fece. See the link: