Milk allergy - urgent advice needed on margarine

[Cll]

Dd has a friend from school playing this pm who has a milk allergy. THey've decided they want to make flapjack and I've bought marg instead of butter - but when I look at the pack it lists whey as one of the ingredients (it's Olivio) - can I use this or will it start a reaction?

Need advice in next half hour or I'm going to die from pestering!!

Milk allergy is usually to casein... is casein in whey? But it could be to lactose... Is there anyway you could buy/use something else?

If you are near a supermarket go and buy "PURA" it is a margarine that is dairy free - so hopefully would be okay. Good Luck!!

Nowhere near supermarket and can't face trek with three kids - will try calling her mum (she was out before) and see if she can shed some light

thanks for speedy response