Effect of acupuncture on Th1/Th2 immune balance in children with mycoplasmal pneumonia in children with syndrome of phlegm heat closing lung

INTERVENTION: Acupuncture group:Bloodletting was performed by needling sixue point;control group:8/5000 Azithromycin sequential therapy; CONDITION: Mycoplasma pneumonia PRIMARY OUTCOME: Symptom score;IL‐4;IFN‐?;Days of antibiotic therapy; SECONDARY OUTCOME: Temperature; INCLUSION CRITERIA: ? Meet the diagnostic criteria. ? Children over 2 years old and less than 12 years old. ? No other medication was used. ? No history of blood or needle sickness. ? They are willing to participate in the study and their guardians should sign the informed consent to participate in the clinical trial study.