An isolated Lactobacillus paracasei strain GMNL-133 is disclosed, which was deposited in the China Center for Type Culture Collection (CCTCC) under the accession number of CCTCC M 2011331 is disclosed. The isolated Lactobacillus paracasei strain GMNL-133 is used for preparing a composition for use in the treatment of atopic dermatitis or other allergic diseases in an effective amount. And a composition for use in the treatment of atopic dermatitis or other allergic diseases comprises an effective amount of the Lactobacillus paracasei strain GMNL-133 is also disclosed.
