My son has been having extremely painful rashes in reaction to swimming in our pool. I am not sure what the problem could be because everything is balanced, and no one else has any issues in the pool. We have tons of kids and adults over almost every week, and he is the only one having the issue. He has some minor eczema occasionally, and I believe the chlorine is causing that to flare up. I read some suggestions to try a light coating of oil prior to swimming to prevent chlorine absorption, but I am concerned about it causing issues in the pool. We cannot switch to a saltwater system at this time, and if I understand it correctly, that wouldn't help either. It's just a different source of chlorine. Any help and advise would be greatly appreciated! Thank you.