Hello!
this condition is caused by chronic inflammation in the intestinal system. Usually there is toxins, viruses, pathogens and antibodies against self tissue present in the gut that are keeping it inflamed which is what causes the recurring flares. Food sensitivities are usually present as well which means anytime you eat something your body has antibodies to, it triggers an immune reaction which puts you into a flare and leaves you with damage to your colon.
I always suggest a pathogen cleanse (candida, fungus, parasites, viruses) such as my seasonal candida and parasite cleanse (but start off gentle and slowly increase with remedies) and also gut-soothing supplements such as Lglutamine, bone broth, gelatin, slippery elm, warm soups, smoothies and avoiding anything raw or uncooked or hard to digest. Avoid all gluten, dairy, sugar, nightshades and other inflammatory foods and stick to veggies, lean proteins, healthy fats and complex carbs such as buckwheat, squash, peas, berries, etc.
This is a complicated condition so i cant give specifics but eating those soothing and ANTIINFLAMAMTORY foods and taking those supplements to soothe the gut can give a lot of relief while youre working towards addressing the root cause 🙂