"Guo Min Yao" directly translates to "allergy medicine" or "anti-allergy medication." It refers to a class of pharmacological agents used to treat allergic reactions and their associated symptoms, which occur when the body's immune system overreacts to normally harmless substances called allergens.
 
Properties and Benefits
Reducing nasal congestion, runny nose, and sneezing
Relieving itchy eyes, red eyes, and watery eyes
Alleviating itchy skin, hives, and rashes.
Reducing swelling
Easing cough and asthma symptoms
Preventing and treating severe allergic reaction