Question: How to diagnose Problems with Smell ?
Answer: Scientists have developed tests to determine the nature and extent of a person's smell disorder. Tests measure the smallest amount of odor patients can detect as well as how accurately a person can identify different smells. An easily administered "scratch and sniff" test allows a person to scratch pieces of paper treated to release different odors, sniff them, and try to identify each odor from a list of possibilities. In this way, doctors can determine whether a person has a decreased ability to smell (hyposmia), the inability to detect any odors (anosmia), or another kind of smell disorder. In some cases, your doctor may need to perform a nasal examination with a nasal endoscope, an instrument that illuminates and magnifies the areas of the nose where the problem may exist. This test can help identify the area and extent of the problem and help your doctor select the right treatment. If your doctor suspects that upper regions of the nose and nasal sinuses that can't be seen by an endoscope are involved, he or she may order a specialized X-ray procedure, usually a CT scan, to look further into the nose and sinuses.
Source: NIHSeniorHealth

Question: What are the treatments for Problems with Smell ?
Answer: Depending on the cause of your smell disorder, your doctor may be able to treat your problem or suggest ways to cope with it. If a certain medication is the cause of the disorder, ask your doctor if you could substitute other medications or reduce the dose. Your doctor will work with you to get the medicine you need while trying to reduce unwanted side effects. Some patients with respiratory infections or allergies regain their sense of smell when the illness or condition is over. Often, correcting a general medical problem also can restore the sense of smell. For patients with nasal obstructions, such as polyps, or other inflammatory conditions of the nose or sinuses, medical treatments or surgery can restore the sense of smell. Occasionally, the sense of smell returns to normal on its own, without any treatment. Your doctor may suggest oral steroid medications such as prednisone, which is usually used for a short period of time, or topical steroid sprays, which can be used for longer periods of time. Antibiotics are also used to treat nasal infections. The effectiveness of both steroids and antibiotics depends greatly on the severity and duration of the nasal swelling or infection. Often relief is temporary.
Source: NIHSeniorHealth

Question: What is (are) Problems with Smell ?
Answer: You can help your doctor make a diagnosis by writing down important information about your problem beforehand and giving the information to your doctor during your visit. Write down answers to the following questions. - When did I first become aware of the problem? - Did I have a cold or the flu? - Did I have a head injury? - Was I exposed to air pollutants, pollen, pet dander, or dust to which I might be allergic? - Is this a recurring problem? - Does it come at any special time, such as during the hay fever season? When did I first become aware of the problem? Did I have a cold or the flu? Did I have a head injury? Was I exposed to air pollutants, pollen, pet dander, or dust to which I might be allergic? Is this a recurring problem? Does it come at any special time, such as during the hay fever season?
Source: NIHSeniorHealth