Rhinitis in 3-year-old babies is usually clinically manifested in the following two ways: i. Acute rhinitis, also commonly known as a cold, mostly secondary to upper respiratory tract infections, often with nasal congestion, runny mucous-purulent nose and paroxysmal sneezing, and also with sore throat, fever, depression, and loss of appetite. Usually, it can be cured gradually by treating the cold, and most of the disease history usually does not exceed 12 weeks. The typical clinical symptoms are paroxysmal sneezing, runny nose, nasal itching and nasal congestion, most of which are obvious in the morning, and some children may have bronchial asthma or atypical chronic cough, and some have recurrent itchy eyes, tearing, frequent nose rubbing and eye rubbing.