I lost my sense of smell after functional sinus surgery. I saw Dr Zara Patel at Stanford who did a series of 3 PRP (protein rich plasma) into my olfactory center — high up inside the nose. My sense of smell now comes and goes depending on how swollen the tissue is in my nose (I’ve had 3 years of complications since my surgery). I was able to taste cheese a few months ago and I almost cried with joy.