Hay Fever Season in Japan: Causes, Symptoms, and Personal Allergies

Understanding Hay Fever in Japan

• 💡 Hay fever season in Japan typically runs from February to April, marking a challenging period for many residents.
• 🎯 It is an allergic disease caused by pollen from plants like cedar and cypress, leading to widespread discomfort.
• 🔑 Common symptoms include sneezing, runny nose, nasal congestion, and itchy eyes, which can severely impact daily life.
• 📊 A significant portion of the population, one in two Japanese people, are said to suffer from hay fever, highlighting its prevalence.

Origins and Societal Impact

• 🌳 The high incidence of hay fever is attributed to the extensive planting of fast-growing cedar and cypress trees across Japan after 1945.
• ⚠️ Pollen can travel long distances, meaning even urban areas like Tokyo are affected by pollen originating from distant forests.
• 😷 Japanese people commonly wear masks during hay fever season, a practice that also proved beneficial during the coronavirus pandemic.
• 📉 The speaker suggests that hay fever significantly reduces Japanese productivity during the peak season due to widespread symptoms.

Personal Allergy Experiences

• 🧠 The speaker, Jiro, developed hay fever about three years ago, primarily experiencing an itchy throat and eyes.
• 🍎 Concurrently, he discovered a fruit allergy to specific items like apples, peaches, cherries, and pears, which he suspects is a rose family allergy.
• 🌾 He also recalls instances of buckwheat allergies among schoolmates, often triggered by buckwheat-filled pillows during school trips.
• 🧪 Jiro acknowledges the importance of an allergy test, as symptoms can emerge in adulthood, and he has yet to take the hay fever medicine he purchased.

Prevention and Lifestyle Choices

• ☔ Rain helps reduce pollen in the air, making the day after rainfall more comfortable for hay fever sufferers.
• 🧺 Pollen can adhere to laundry, so it's recommended to shake off pollen before bringing clothes indoors if they were dried outside.
• 🏠 The speaker opts for indoor drying due to personal habits and concerns about rain, wind, and his limited wardrobe.
• 📍 For those wishing to avoid hay fever in Japan, living in Okinawa or Hokkaido is suggested due to their relatively lower cedar and cypress pollen counts.