Check that the cone is not too long...ie...can she comfortably reach food and water or is her nose not getting close enough, let alone her mouth
Also check that the cone is not restricting her neck and throat....hairy mutts need a slightly looser fitting cone (and collar) to allow for the fur....Huskies have double coats (an outer coat and a softer downy undercoat) so make sure its not pulling her coat when she moves her head downwards as that will cause her pain (like if someone pulled your hair)
If the cone is too long, take it off and trim it so that she gets her nose and mouth to food and water but not to her poorly paw
If it is too tight...3 fingers side by side minimum tween collar/cone and skin for a double coated dog like a Husky, loosen it....if it will not loosen, return to the vet and get a more appropriate one