Bad Face Rash - Move to Organic Milk

Julia has had a face rash for the past couple of weeks. Even with hydrocortizone cream, the rash is not going away. We've been cutting out foods that we thought were causing the rash and noting down everything she eats every day. Today, we are moving towards only giving her organic milk, instead of regular homo milk to see if it helps. We are also only giving Julia chicken and broccoli for solids. Nothing else but she can eat as much as she likes. Let's see if we can find the culprit.