Three suggestions: 1. Go to the hospital for an ear, nose and throat specialist examination to determine whether the nasal cavity is blocked. If there is congestion, spray decongestant on the nasal cavity for a few days, and the sense of smell can be restored.

2. If the nasal cavity is not blocked, do a sinus CT to see if there is sinusitis. Sinusitis affects the sense of smell. After finding sinusitis, treat it, and the sense of smell can be restored after improvement; If the sinuses are normal, head CT is needed to exclude intracranial tumors from compressing the olfactory nerve.

3. None of the above may be caused by the damage of olfactory nerve endings and olfactory nerves caused by tuberculosis infection. The treatment method is to take some vitamins, zinc, hormones, ATP and other drugs on the basis of insisting on anti-tuberculosis treatment, and strengthen nutrition. In daily life, I suggest you: keep the surrounding air fresh, stay away from alcohol and tobacco, and stay away from irritating gases.