Anything that goes beyond your typical glass of spilled milk should be seriously treated to maintain the lifespan and quality of your flooring. Act quickly and clean up the water as fast as you can. Time is of the essence in a situation like this. Remove the laminate flooring in the area where the flood occurred, and allow the subfloor to dry out. Replace any flooring or subflooring that is damaged. Generally, plywood is more resistant to swelling from water than OSB, so consider this when deciding what to replace.