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CINCINNATI — Many patients recovering from COVID-19 said they're always fatigued, or they have chest pains and memory problems and, now, more people are reporting problems with their sense of smell.

"The virus that causes COVID-19 seems to have a predilection for infecting the cells that live near the smell nerves and subsequently causing secondary injury or even the death of smell nerves," shared Dr. Ahmad Sedaghat, an otolaryngologist at the University of Cincinnati College of Medicine.

Sedaghat said as those nerves start to heal, about one to four months after the COVID infection, many patients are complaining of a condition called parosmia, a strange distortion of smell.

"The changes to the sense of smell are typically quite bothersome," Sedaghat continued. "They can be things like gasoline, smoke, fire, rotten food, rotten flesh."

Sedaghat said anywhere from 15% to 50% of all patients who lost their sense of smell may experience parosmia as the nerves in their noses start to regenerate. He said the best treatment for parosmia is a type of therapy for the nose, called olfactory training.

"Which has been described as essentially practicing smelling concentrated odors to essentially stimulate your smell nerves," Sedaghat said.

Regaining a normal sense of smell usually takes several months for most patients.

Sedaghat said there is no surgery or medication for the condition, so the retraining is the best avenue for patients working to regain their sense of smell.

Fever, coughing, and shortness of breath are common, well-known symptoms of COVID-19, but the loss of smell and taste has many baffled. Find out why it is not as uncommon as you think.

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