Sulphur fungicides are used, at some point, on just about every organic food crop out there. There sulphate based, which is a far cry from elemental sulphur in terms of nervous system interactions. Honestly, I wouldn't worry about it- if you've ever smoked BC commercial, they used a sulphur vape every two weeks thru flower. Or if you've ever drank any decent wine- the fungicide used ( and it's impossible to grow grapes commercially w/o a fungicide) was Borduex mix, which contains a whole bunch of sulfur.

Sure, rinse if you want to- but you've used one of the safest fungicides out there.