My Great Dane/ Newfie mix went to bed last night with a small swelling one her face and I figured it is just a bug bite. Well this morning I woke up and her face is swollen and covered in lumps and she refuses to eat. The swelling to me is all over her face but it is mostly under her chin. Even her ears are swollen and painful. I've called my vet and he said that he can fit me in a week from now even though I stressed that she needs help NOW not later. Is there anything I can give her at home that will make the swelling go down?