Oregano oil is a staple for SIBO support, specifically for its carvacrol...

https://www.thistradinglife.com/health/best-oregano-oil-capsules-for-sibo-top-rated-supplements-for-gut-health-support

Oregano oil is a staple for SIBO support, specifically for its carvacrol content. Capsules are generally preferred over liquid to avoid the strong taste and ensure better delivery. Protocols usually last 2 to 4 weeks