Oregano oil is a common SIBO support tool. I prefer capsules over liquid-they...

https://highstylife.com/what-carvacrol-percentage-should-i-look-for-in-oregano-oil-capsules-for-sibo/

Oregano oil is a common SIBO support tool. I prefer capsules over liquid-they bypass the upper gut to prevent burning. Look for high carvacrol content, the active compound