Observation on the Efficacy of Mahuang Lianqiao Chixiaodou Tang Jiajian for the Treatment of Acute Eczema (Shi Re Jin Yin Syndrome)

INTERVENTION: Control Group:Boric acid solution wet combined with oral administration of cetirizine hydrochloride tablets.;Observation group:In addition to the control group, Mahuang Lianqiao Chixiaodou Decoction was administered orally with modifications.; CONDITION: Acute eczema PRIMARY OUTCOME: Clinical Efficacy; SECONDARY OUTCOME: Traditional Chinese Medicine Syndrome Score;eczema area and severity inde XScoring;Visual Analog Scale;Proportion of nighttime itching duration.;inflammatory factor;Adverse Reaction; INCLUSION CRITERIA: (1) Concurrently meet the diagnostic criteria of Western medicine and the criteria of damp‐heat syndrome in Traditional Chinese Medicine; (2) Age between 18 and 70 years, with no restriction on gender; (3) No history of receiving glucocorticoids, antihistamines, immunosuppressants, or traditional Chinese medicine related to the treatment of acute eczema within the past 2 weeks prior to enrollment; (4) Patients and their families are fully informed about the content of this study, voluntarily sign the informed consent form, and are able to cooperate to complete the treatment and follow‐up.