There is little you can do to substantially reduce your risk if you are outside in a thunderstorm. The only completely safe action is to get inside a safe building or vehicle.
Lightning is primarily an injury to the nervous system, often with brain injury and nerve injury. Serious burns seldom occur. People who do not suffer cardiac arrest at the time of the incident may experience lesser symptoms, which often clear over a few days:
Muscle soreness
Headache, nausea, stomach upset and other post-concussion types of symptoms
Mild confusion, memory slowness or mental clouding
Dizziness, balance problems
Longer Term Problems
Most survivors experience only some of the symptoms below:
Problems coding new information and accessing old information
Problems multitasking
Slower reaction time
Distractibility
Irritability and personality change
Inattentiveness or forgetfulness
Headaches which do not resolve with usual OTC meds
Chronic pain from nerve injury
Ringing in the ears and dizziness or balance problems
Difficulty sleeping, sometimes sleeping excessively at first and later only two or three hours at a time
Delayed Symptoms
Personality changes/self-isolation
Irritability and embarrassment because they can't remember people, job responsibilities and key information
Difficulty carrying on a conversation
Depression
Chronic pain and headaches
Friends, family and co-workers who see the same external person may not understand why the survivor is so different. Friends may stop coming by or asking them to participate in activities or survivors may self-isolate out of embarrassment or irritability. As with other disabilities, families who are not committed to each other are more likely to break up.
Anatomic tests take an x-ray, CT scan and MRIs or blood count measurement. These tests will often come back "normal" for lightning survivors because, similar to concussions, the injury is in how the brain works, not in what it looks like on a picture kind of test.
Functional tests show how something is working so that it may be more useful to have neuropsychological testing for brain injuries. Neuropsychological testing is expensive but may be useful for those who need to document learning or processing disabilities for school or work.
The four most important factors in overcoming disability from lightning injury, or from any illness or major injury for that matter, are:
Having a supportive family/friends network.
Becoming your own advocate and learning as much as you can about this disability or having a family member do this for the survivor.
Finding a physician willing to listen, read, learn and work with the survivor and their family. There is no ‘specific’ treatment for lightning injuries. Care of the brain injury and chronic pain problems is similar to that for concussion and nerve injury from other causes.
Having a sense of humor because not all of this will go away. Laughter is a great stress reliever for everyone.
This factsheet courtesy Dr. Mary Ann Cooper, Professor Emeritus, Departments of Emergency Medicine and Bioengineering University of Illinois at Chicago