While I certainly understand your concerns, if you wish to use herbs, I would still encourage you to use them!!! You do need to always keep your allergies in mind of course, and find a good practitioner that will also keep your allergies in mind as you are being treated - but don't let it stop you! It's really no different that being allergic to an abx or two and still using abx to treat this or that.
The key is to have a good practitioner!
BTW- I'm jealous that the only reaction you had was a sore throat!! You should have seen me before I started using local honey daily! LOL!! My eyes would swell horribly, I was sooo stuffed up and really couldn't breathe well and would just sneeze my head off all day! I didn't know I was allergic to ragweed until I moved to an area that has a bunch of it!!