Possesive behaviour- biting when going near with toys or treats

Please could someone offer me support. I'm really struggling now. My 2 year old pug is very aggressive and bites if I go near her when she has a toy or treat. She is very aggressive with food and won't let me near showing Possesive behaviour. I've read info about feeding times but what should I do about treats like pigs ears. Today she took one and when u took it back she instantly bit me no warning. Then my partner had her work for it with commands she had the ear but snapped if you went near her. What do I do. Desperate for some help. Thank you inadvance for any advise.