As long as it's not made from Cow Milk. She can take it. The key to an allergy-free diet is to avoid foods or products containing the food to which you are allergic. Milk allergy is most common among infants and young children. Since you have noticed he is allergic to milk, use milk products that are soybean or soya bean based. You can equally avoid beef because those allergic to cow milk most often react to other cow products too. Other protein sources like egg, fish, crayfish, beans, etc should be given