Physan 20 use

[michel]

Would someone please advise me about the use of Physan 20? I have read posts where people discuss Physan quite casually as if it were perfectly harmless. On my bottle of Physan 20, however, there are dire warnings about its use. Its said to do irreparable damage if you get it in your eyes. It advises you to cover your eyes and the rest of your face, to wear gloves and long sleeves and to discard any clothing on which it has been spilled. Why are so many people using it if it is so dangerous?

The reason I am interested is because I have some fungus problems on a couple of Cattleyas.