I had my dog in the room with me and then I noticed her doing reverse sneezing and it also sounded as though she had a hairball as it sounded like some coughing noise. I took her outside and then an hour later her face is swollen. We didn’t see her eat anything on the camera while I was working. The swelling has gone down a lot but still there. She vomited 4 to 5 times today (white and yellow vomit) and very little amounts. She ate a little bit of rice today and drank water. She seems uncomfortable as she keeps moving her sleeping position and keeps kicking while resting. We suspect it could be possible she ate mouse poop as we saw a mouse run through the yard. The image is of her swelling yesterday and it went down significantly with benadryl. She still has swelling but not verh noticeable. She did have dental surgery on January 30th but it shouldn’t cause an issue now. Please advise what we should do as the vet wasn’t very helpful and said to go to the hospital.