I've never heard of an herbal supplement to help reduce brain swelling, I hope it helps you. Please let me know if it helps as I'm getting brain swelling since I had brain radiation laser treatments, cyberknife surgery in August. I've been getting excruciating headaches everyday, they've gotten so bad I can barely get out of bed to do anything & my headache medicines and pain medication isn't stopping the headaches but that's probably because I keep getting swelling. I just finished a round of anti-inflammatory steroids which helped for a few days but now it's swollen again and I'm getting excruciating headaches everyday. I just got off the phone with my primary care doctor she's calling in a prescription for Prednisone, I pray it works.