Inclusion Criteria:  Age d above 5; Subjects with deficiency of lung and spleen Qi; At least 2 or more allergic symptoms rhinorrhea , sneezing , nasal obstruction and nasal itching for a cumulative period greater than 1 hour per day. These symptoms may be accompanied by itchy and red eyes and tears; Positive srum IgE test; Voluntary written consent.  Exclusion Criteria:  Known chronic disease such as asthma, rhinosinusitis, nasal polyposis; Known severe medical conditions, such as cardiovascular, liver or renal dysfunction, diabetes mellitus, cancers, cerebrovascular diseases, blood system diseases; Concomitant steroid, nonsteroidal anti inflammatory drugs (NSAIDs), anticoagulant, and immunotherapy within past month; Impaired hematological profile and liver / renal function; Known alcohol and / or drug abuse; Known allergic history to any Chinese herbal medicines; Subjects who are pregnant or lactating.