https://permies.com/t/112020/crohn-herbs-heal
"He started drinking copious amounts of mint tea with turmeric, combined with quercetin. They are both highly anti-inflammatory, and healed his Crohn's ulcers on his feet (which he'd had for months). They healed within a week of adding quercetin to his tea, and he's been free of ulcers for over a year now, and entirely in remission." (From the link)
"Boswellia (Frankincense), and Ginger are among the most frequently recommended herbs for managing Crohn's disease due to their potent anti-inflammatory properties. Wormwood has shown promise in clinical studies for helping patients taper off steroids and achieve remission, while Aloe Vera and Marshmallow Root are used for their soothing, wound-healing effects on the gastrointestinal mucosa.
Licorice Root (specifically deglycyrrhizinated or DGL form) and Peppermint are also utilized to reduce intestinal inflammation and alleviate digestive discomfort like bloating and nausea. Additionally, Chios Mastic Gum and Green Tea are noted for their antioxidant and anti-inflammatory benefits" (ai)