What should I do if an ESD diode experiences DC breakdown?

What should I do if an ESD diode experiences DC breakdown?

Under what circumstances can an electrostatic diode experience DC breakdown?
In general, when the reverse voltage on the diode exceeds its maximum withstand value, it will be broken down. At this point, if the current is not restricted, permanent and irreversible damage will occur. If the current is limited during breakdown, not only will it not
Damaged, it still has a stabilizing effect, just like a voltage regulator diode, because the volt ampere characteristic curve near the breakdown voltage is very steep.
One voltage can correspond to several current values, as long as the current is controlled within the rated range (using a series resistor to limit the current method), the current simple voltage regulator circuit does this.