The smelly phenomenon is only a skin problem, and it is the best if it can be treated in time. As long as it's not powdery or moldy, it's not a big problem Maybe there is less salt, or the temperature and humidity have changed greatly. Soak in light salt water, then wash it, hang the salted fish until it is 70% dry, wrap it in paper and put it in the refrigerator for eating at any time. It's not delicious if it's too dry.