I don’t post often but when I developed sensitivity to adhesive and or wafer material with my bags I actively searched for answers.   I don’t know how to get in touch with the person that posted so in case this helps someone I’ll post my experience.  I ,like the poster, have lots of health issues and suppressed immune system we both developed redness and itching under bags and the ostomate shared the experience with the dermatologist settling on CYMED products.  I tried 2 other brands read the post and have had success with CYMED.  Allergy or severe sensitivity it can and does happen so thank you to ostomates who share the successes and problems they are helpful!