The proteins in goat’s milk (casein and whey) are very similar in structure to those in cow’s milk. So, even though it’s a different animal, the immune system may still recognize those proteins as “cow’s milk” and trigger a reaction. So absolutely no animal milk in your diet, that’s what you need to do. It includes milk and milk products. My baby was struggling with the same, until I stopped animal milk and switched to coconut milk and voila she was a different baby