Yes, I do use that but not on the roots, just on the leaves, when I get cuttings or maybe on the stems to cover the open 'wound'
Just adding: My understanding with Sans grown in the Philippines, they survive very well there even months submerged planted in ground even if the soil is in our traditional loam soil there.
I would just pull them in for now (those in containers), since some of your Sans are still quite young. There is just too much moisture in the air and everywhere there. Unless the sun has finally come out, then let the sun dry them out fast, till the next bout of the monsoon comes in.
