Can I take English Ivy extract and Thyme extract before surgery?

Hi. I have an explant/capsulectomy/lift in 30 days, and I currently take English Ivy Extract and Thyme Extract to help with my asthma. It seems to work better than my inhalers. The pre op appointment isn't until 7 days prior. I am wondering if I should stop taking this supplements prior to the surgery? It does help with my breathing which I feel may be important for safe anesthesia experience, but worry there is also a risk for excessive bleeding.