Hay fever sufferers will likely need to take extra measures this year amid the pandemic as thorough ventilation is sure to bring more pollen indoors and rubbing itchy eyes increases coronavirus infection risks.
According to the Japan Weather Association, cedar pollen dispersal began gradually throughout the Kanto and Kyushu regions as of Saturday morning, and is forecast to peak in early March in Osaka and early to late March in Tokyo.
Although less cedar pollen is expected to be in the air than usual, because airborne pollen levels seen last year were low, they are expected to be 1.8 times higher than last year in the Kanto-Koshin region, 1.4 times higher in the Kinki region and 2.2 times higher in the Tokai region.
In addition to the usual unbearable symptoms, hay fever sufferers this year must also contend with problems arising in as a result of the pandemic.
According to Prof. Kimihiro Okubo, an expert in hay fever treatment at Nippon Medical School Hospital's otolaryngology department, there are concerns that those suffering from hay fever may become infected with the coronavirus by using hands that had come in contact with the virus to rub the irritated areas of the eyes and nose, where areas of mucous membranes are located.
Those who sneeze frequently run an increased risk infecting others through airborne droplets. Now that more places are being thoroughly ventilated as a virus prevention measure, hay fever sufferers are more likely to be exposed to pollen, and therefore need to strengthen their countermeasures.
The Japanese Ophthalmological Society this time last year also urged hay fever sufferers to be careful to avoid rubbing their eyes with their hands.
Okubo has suggested such measures as thorough hand disinfection, wearing two layers of masks and to begin taking over-the-counter or prescription medications earlier than usual.
He also said installing window screens or lace curtains at home can reduce the influx of pollen indoors when ventilating, and recommends the use of humidifiers and air circulators.
"Hay fever symptoms include fatigue and nasal congestion, which are similar to those of COVID-19. If you have a fever or find any abnormalities with your sense of taste or smell, please consult a medical institution," Okubo said.
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