My mother had a tooth pulled not long ago. After the surgery, her whole upper cheek and side of her face was bruised and swelling. She was working in smoker's homes within a couple of days after the surgery. She has relied heavily on her sense of smell her whole life and since this surgery has not been able to smell most things and her taste is also affected. She is reading correlational studies that say the people they tested with no sense of smell died within 5 years or that loss of smell could be an indicator of Parkinson's later on etc. Do you think the loss of smell/taste is damaged nerves or something else? Do you have any tips on things she could do to kind of reset the system and smell again?