Application of Situational Micro-Videos in Pediatric Oxygen-driven Nebulization

INTERVENTION: Intervention Grop:Micro‐video combined with situational health education for nebulization;Control Grop:Routine nebulization health education; CONDITION: Asthmatic Pneumonia PRIMARY OUTCOME: Nebulization Inhalation Compliance Questionnaire;Nebulization Operation Score; SECONDARY OUTCOME: TRACK;Time to disappearance of wheezing, cough and lung rales;Cost of nebulization treatment;Satisfaction degree; INCLUSION CRITERIA: 1. Acute onset with typical symptoms of asthmatic pneumonia including cough, hypoxia and dyspnea; 2. Aged 1 to 5 years old; 3. Receiving inhalation treatment with glucocorticoids and bronchodilators via PARI nebulizer (Germany); 4. Pulse oxygen saturation >=90%; 5. The children’s guardians have normal cognitive, comprehension and communication abilities; 6. The children’s guardians voluntarily participate in this study and sign the informed consent form.