Would IV antibiotics get rid of group strep b symptoms in a non pregnant woman?

Took oral antibiotics several times but cannot get rid of group strep b. I understand that once you have this, you are colonized forever. My gyno is choosing to treat me since I am symptomatic but every time she treats me, she is giving me the same antibiotic every other month & it's not fixing the issue. Would getting intravenous antibiotics be a better option? I'm not pregnant and it's definitely just group strep b that is causing the problems.