How much infection are your plants showing? It's very difficult to cure but not so hard to slow it down. The milk solution wash can help but don't put any of that on your flowers. Other remedies include products like Nukem' by Flying Skull, or sulfur plant fungicide by Bonide. Even H2O2 sprayed on the spots can help slow it down. If the plants were in a greenhouse, you could also use a greenhouse sulfur burner.
I've never completely won this battle but I have managed to slow things down enough that I could harvest a crop. It hits your yield a bit because you should pitch buds that have been infected. Wash the others like you did with your little sample.