My friend has lots of waterly diarrhea , even like mucous , the GI specialist says its caused by germs, she was on Metronidazole , Biaxin & some probiotic for 4 weeks a month ago , now the medicine stops & the symptoms come back ,so the GI specialist prescribed Candomycin 250 mg qid for 14 days, but Rx is very expensive 4700.00 for 56 - 60 pills is there someting spells like Candomycin or something like this spelling?