Are you still taking probiotics? Were you taking the probiotics between the flare? What probiotics are you using? I am usually put on Cipro and flygal maybe you need that to fully get rid of pouchitis, with it's return so quickly I would say that you aren't on antibiotics long enough or they are not doing enough on their own.
I was going through something similar, I am now taking Visbiome, twice daily. I am hoping this will stop the reoccurrence, I was having success with just once a day but no longer. My doctor still has concerns and we will be going there once covid is not such an issue. I never have much of an appetite and it gets worse when I am on antibiotics.