My Dsis has been diagnosed with concussion after banging her head two weeks ago and she has completely lost her sense of smell and taste. It’s getting her down a lot, particularly this time of year with all the lovely food on offer 😢. Has anyone experienced this? How long did it take to return (assuming it has)? She’s worried it might never come back. It seems there is little you can do about it, but if anyone has any suggestions that might help, I’d be really grateful.