藥英文：過敏 Allergy

hypersensitivity [͵haɪpɚ͵sɛnsə`tɪvɪtɪ] 
超敏反應

an itchy rash 
皮疹發癢

a runny nose
流鼻水

Allergy is a hypersensitivity reaction of the immune system to typically harmless environmental substances. Symptoms may include red eyes, an itchy rash, sneezing, coughing, a runny nose, shortness of breath, or swelling.
過敏是由於免疫系統對環境中通常無害的物質超敏反應而引起的各種病症。症狀可能包括眼睛發紅、皮疹發癢、打噴嚏、咳嗽、流鼻水、呼吸急促或腫脹。

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