Chantae, I'm glad your son can still eat peanut butter. It's the little victories like that that really keep us hopeful.
Our allergist told us to be cautious even if the label just says the food came from a factory where milk products are processed. We don't let our son have anything with that label.
And yes, I do a lot of cooking although I've never enjoyed it or been good at it. It just becomes a way of life. Our son has never had a bite of food from a restaurant.