chemical odor with wafer

Hi all

For the last month+ I have noticed a very medicinal odor that occurs after wearing my wafer for 1 day or so; it actually causes the outside of the pouch and my clothing in that area to pick up the odor as well. It is not the result of output.... not sure why this is happening and/or what can be done about it. I switched products (was using Convatec) as I thought maybe I had developed a strange chemical reaction with what I was using but the new company product (Hollister) causes the same problem. I am planning on calling both Convatec and Hollister to see what they think. Any thoughts from you all are appreciated! I really don't want to have to change the flange/pouch every day as the cost will definitely add up!!!