If irriation persists, get medical attention. DO NOT attempt to give anything by mouth to a drowsy or unconcious person. Keep warm and quiet. Get prompt medical attention. After first aid, get appropriate in-plant, paramedic, or community medical support.
Vapor is heavier than air and can travel to source of ingnition and flashback.
Use water spray to cool fire exposed structures and disperse vapor cloud if fire is not present. Shovel absorbed material into steel container and cover. For large spills, dike far ahead of liquid spill for later disposal. Do not release into sewers or waterways. Wear appropriate protective equipment when handling material.