Does the bulb have a lot of soft wet red areas on it. That's the beginnings of rot. If that's the case, when the blooming is finished, you could lift the bulb and peel off or trim the "skin" until you reach white tissue. You can also cut off roots that are red and even trim rotted areas off of the basal plate, if necessary. If I have to lift the bulb, I also sprinkle the bulb with ground cinnamon, which has an antiseptic property. If there are just a few "freckles" of red, that seem to be on the surface, you're probably OK. If the bulb is getting soft with no red, that is natural, and OK. Let the soil dry out completely between waterings. Its always a good idea not to overwater, since it encourages diseases and fungus gnats. Given the high cost of bulbs, it's worth trying to nurse them through a mild case of disease.