I'm allergic to penicillin, too, and had no reaction to ceftriaxone (which they switched to at some point from the vanc). Your mileage may vary, of course. But it's way better than the vanc. Vanc can save your life, but it's the 'big guns' and has lots of potential side effects. For example, it's an ototoxic for some (including me - it did significant damage to my hearing). But better lost hearing than dead!They are wanting to put me on Ceftriaxone. But I understand that it’s in the penicillin family and I’m allergic to penicillin. So they’re going to do some testing tomorrow to see if I can take it and they’ve sent a sensitivity test to Mayo Clinic. So I’m in the hospital for a few more days.
Good luck. It sounds like you're finally on the right path and in good hands.