While I was kiting recently a rain shower come through during the day and the kite must have been just slightly damp when it went in the bag, because now I’ve got a stinky kite with some mould in places.

Yes, I should know better, but I just screwed up and forgot about the nice little fresh water bath my kite had that day.
Does anyone have any tips for getting rid of the spots of mould without damaging the kite?
Thanks.