Are there herbal supplements that can treat a bacterial lung infection?

Depends: If you mean treat...I think not. You need antibiotics. But there are herbal med that boost your immune system and can speed the healing. Also vit d is very important. Start at 2000 iu per day and then get a blood level in a month.

Need Antibiotics: Herbs can help your immune system but you really need antibiotics is you have a true bacterial lung infection.

Herbal: Supplements carry a label stating that it is not intended to treat, diagnose or cure a disease or ailment. Generally, they boost your immune status helping your body fight the infection and may compliment antibiotic treatment. Colloidal silver has been reported to have both antibacterial and antiviral properties.