Hi, ?? Mine is both invasive and non invasive. I have just completed my 6 weeks of BCG and now awaitng my next surgery . The BCG was relatively easy, of sorts once they provided some much needed pain relief, Van and Endone. side effects lasted a few days , immediately after and other times, side effects came on 4 days after. My side effects have been harsh and I cant lie, as I am normally very active , Fatigue, Severe Headaches , urgency to urinate and blood. weight loss and then put of weight. I now know why they called it a journey. Not sure where you are located , but be guided by your surgeon and oncologist. I wont know much more for at least another 6 weeks. I am more than happy to discuss. Mark
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