Mine came back after a couple of months. Have your doctor run down your medication list to see if it could be something else. Doxycycline takes my smell and taste away while I'm on it, for example
Loss of taste after a bone marrow transplant, such as for myeloma, can occur due to treatment side effects like chemotherapy or medications. While taste often returns within months, in some cases, it can take longer or remain altered. Since it's been two years, consult your doctor to explore potential causes and solutions Show Full Answer