Garlic is a popular herb that has been widely used in both culinary and traditional medicine practices throughout history Trusted Source.Its often used medicinally to treat a broad range of physical ailments, including fungal, viral,and bacterial infectionsThese supplements may increase your risk of bleeding and can interact with some medications, such as blood thinners and certain HIV drugs. If you’re taking any such medications, talk to your healthcare provider prior to using garlic to treat your UTI