sense of smell

I am having problem with my sense of smell, I either do not smell anything or everything smell the same, it started about a year ago and it is getting worst, what can I do?
i am taking zinc supplement I was told that could help but I have not see any changes for the better.
Can you help me
Thank you
Yolande

[Vivek V Gurudutt, MD]

Trouble with smell can result from a number of different sources including viral infections, trauma, nasal polyps and nasosinal disease, tumors, and chemical exposure.  Sometimes, no cause can be found.  You should be evaluated by a physician.  A complete history and physical exam is necessary including an exam of your nasal cavity.  Smell testing as well as radiological imaging may also be helpful.  Good luck.