During monsoons often we experience infections be it bacterial or fungal on our orchids.In this video I show how I treat a recently purchased orchid with fungal infection.
I have used hydrogen peroxide (3%) and cinnamon to treat it.
After treating I have mounted my orchid in a downwards slanting angle so that the leaves don't stay wet for too long after watering and they will get good air circulation.
you can check my video on yellow leaves on orchids.That will help you to know what is normal yellowing and what is not
https://youtu.be/LNW8vVSlQdA
Also my video on how I prefer to and how I care for my mounted orchids.
https://youtu.be/XXdK42v7cwU