I had soft rot on some that I planted too deeply in an area that stayed damp longer than other parts of my yard. I dug them up, cut off the soft part, and sprinkled them with Comet powder, like above. I also put some Comet in the soil where I replanted them, in a different area with better drainage. I was so worried I was going to lose them, as a lot of them were mushy, but they recovered fine and went on to multiply the next couple of years. Good luck!