What medicine works well for flower root rot? Detailed prevention and control methods

For flower root rot, you can use potassium permanganate and vitamin B12. After flowers develop root rot, you first need to dig them out, wash the soil off the roots with clean water, then sterilize the scissors with a potassium permanganate solution and cut off the flower's rotten roots and old roots; place the flower in a potassium permanganate solution to soak, disinfect and kill pathogens, then place it in a vitamin B12 solution to soak to promote rooting, and finally replant it in new soil.