Recently, olfactory loss has emerged as one of the major problems due to the aftereffects of COVID-19.

Olfactory loss usually heals naturally after a period of time, but if it is not treated in a timely manner, complete healing may not be possible. Olfactory training is a treatment with few side effects and can have a definite effect if the patient continues to train with willpower. However, repeating the same exercise twice a day for at least three months is not as easy as you might think. The downside of analog training is that it is difficult for medical personnel to determine the patient's training mode or time.

However, in the case of digital methods, the records of olfactory training are stored and managed with data, so that medical personnel can continuously monitor and accurately determine the patient's condition.