寒かん暖だん差さアレルギー

noun

vasomotor rhinitis from temperature change; non-allergic rhinitis triggered by sudden temperature shifts

Medical term for a condition where rapid temperature changes cause runny nose, sneezing, or congestion without an allergic trigger. Often used in everyday conversation to describe cold-weather sniffles.

• 寒かん暖だん差さアレルギーで、暖あたたかい部屋へやから寒さむい外そとに出でるとくしゃみが止とまらない。

  Because of vasomotor rhinitis, I can't stop sneezing when I go from a warm room into the cold outside.