Hun, lacteeze won't help as this is not lactose intolerance. It could be an allergy to a number of things but the most likely is one of the cows' milk proteins. The very best thing to do is to see a dietician who specialises in food sensitivities. This way you can find out exactly what the allergy is to and ensure that you eliminate all the foods you need to, without unnecessarily eliminating other things. If you do to the dietician's association website you can search on speciality for food allergy and sensitivities.

All the best hun