Need help

No curing WPM. Amputate and pray. Fix your climate, because you are most likely causing condensation daily or you are using foliar sprays often which create an opportunity for such things. The cause is almost always self-inflicted indoors. Several years ago i had a problem that i could figure out until i got one of those wireless temp/rh probes and realized my dehum wasn't keeping up after lights went out and temperatures dropped. When temperature drops, RH rises precipitously. It was fine the first 10 weeks of the grow, but by week 5 of flower it was a recurring issue each time the canopy got to size. I had to downsize my garden a bit and bought a beefier dehum to be safe. Trust someone that's had it happen repeatedly.. there is no curing WPM. No commercial spray works. No anecdotal concoction like the 'cornell formula' will work. Potassium cabonate, sodium bicarbonate, h2o2, milk, et al all promise to do soemthing but just spreads it around to the stems and and anything else it drips on. It may look clean for a a day or two, but it grows back. A portion of it isn't above the surface, so cleaning the surface is not effective. It already looks like you tried to spray something on it... the colonies are smeared. Once you can see it, it is already propagating. Amputate and pray it didn't spread all over. If it continues to spread, within ~3 weeks it'll be a fucking nightmare, lol. It'll be an ongoing battle and most of what you do will be ineffective. Also, there's not "washing" moldy buds. Any flower with mold is garbage. If lucky to amputate and not see it spread, count yourself lucky. And, ensure your climate control is not the problem. You'll need a wireless probe if you grow photoperiods to avoid interrupting dark cycle in flower..