Urgent Help for Water Softener

We use tandem water softeners. Due to unforeseen conditions, sodium hydroxide (caustic soda) water had transferred softener. During 5 hours the cationic resins are washed with sodium hydroxide mixture. Then resins block all the water flow in service operation. I am trying to find a method for cleaning and destroying stickiness situation. We have no time for resin discharge and load new cationic resins. How can we amend this terrible issue?