I think you’re on a very good track. Those are certainly some of the first herbs I’d grab.
In cases like that I use these two:
INFXN – Bugbuster
Immunity Support
I use both of them internally and, in persistent skin infections, I’ve used the BugBuster topically too.
The formulas for both are in the Wound Formulas lesson in the Formulas & Formulations section.
Neither is safe internally during pregnancy or lactation.
Don't use herbs or combine herbs with medications or use them during lactation or pregnancy without talking with your healthcare provider.