That really is a very concentrated tea. I bet it is MUCH more effective! I will also reduce mine down.
I don't use distilled water. Would not know where to get that, either. We have an electric filtering machine which we use for all drinking/cooking water.
And I will let you know any info I find out about Indian names for herbs.
MH had suggested oregano oil and it made me giggle. I remember a few years ago trying to find oregano EVERYwhere, to try to make some Italian dishes. I had some pretty funny experiences trying to explain to folks what it was. My persistance did pay off, though, and I did find a similar herb substitute, which is quite common in gardens and is even used in a spinach-type vegetable dish. I need to dig up the name of it again, though. Maybe that might make a good substitute for the oregano oil as well.