@beverlyacoleman – I’m so sorry your husband is so bad! It happened to me 2008. I had a colonoscopy and biopsies showed collagenous colitis and I was treated.
Did your husband have diarrhea before Covid? Has he had colonoscopy?
Mayo FL has a great gastroenterology department.
I had the same experience, after consulting with GI MD and doing some research, as well as coincidentally having a patient with this diagnosis, I was diagnosed with it. Had never even heard of it! Anyway, the cause was likely long term use of omeprazole along with SSRI use. A colonoscopy and biopsy confirmed it. Now on famotidine for GERD, pretty effective at 20-40mg, 2x/day.
Diet: until it resolved with tapered steroids and diet, no greens unless fully cooked, no onions, low-fat, etc. No alcohol or chocolate, etc. Once resolved I reintroduced salads, tomatoes, minimal alcohol and chocolate.
Hope this helps someone ❤️