We don't give DS ranch dressing often but he did have some tonight as dipping sauce for some homemade chicken nuggets when he saw DH have it. He broke out with a flat red rash around his mouth. Has this happened to anyone else before? He hasn't had any known allergies yet at 19 months old. The rash seems to be fading and it's only been about 20-30 minutes now. His hands that he was using are fine and no other issues. This has happened twice before in his life---but I didn't even suspect the ranch as the culprit. No stomach issues or anything else ever happened.